Log session start time Fri Oct 20 15:14:48 CST 2023

mvc-Log

Log session start time Tue Dec 05 13:06:02 CST 2023

Level Date Message
ERROR 10/20 15:14:48.171 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:14:49.630 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:50.222 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:14:51.681 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:52.102 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:52.276 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:14:52.277 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:52.277 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:53.725 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:54.150 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:55.782 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:55.783 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:14:55.784 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:14:56.203 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:56.343 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:14:58.229 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:58.230 request: /nacos/v1/ns/instance/list failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
WARN 10/20 15:14:58.231 [NA] failed to update serviceName: DEFAULT_GROUP@@npt-mvcall-service
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance/list after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:14:58.371 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:00.416 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:02.469 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:02.469 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:02.469 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:02.844 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:04.289 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:04.897 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:06.318 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:06.507 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:06.955 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:08.374 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:08.561 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:08.996 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:08.997 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:15:08.998 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:15:10.417 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:10.418 request: /nacos/v1/ns/instance/list failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
WARN 10/20 15:15:10.418 [NA] failed to update serviceName: DEFAULT_GROUP@@npt-mvcall-service
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance/list after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:10.606 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:12.635 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:12.635 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:12.635 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:16.036 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:16.674 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:18.092 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:18.730 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:15:20.116 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:20.445 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:15:20.743 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:28.516 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:28.930 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:28.930 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:28.930 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:16:28.930 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:28.931 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:16:28.930 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:30.980 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:33.037 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:33.037 request: /nacos/v1/ns/instance/list failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
WARN 10/20 15:16:33.037 [NA] failed to update serviceName: DEFAULT_GROUP@@npt-mvcall-service
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance/list after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:33.099 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:35.150 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:35.962 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:37.193 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:38.014 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:39.244 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:39.245 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:39.245 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:40.069 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:42.126 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:42.126 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:16:42.127 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:16:43.298 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:45.328 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:47.370 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:49.178 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:49.400 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:49.400 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:49.400 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:51.053 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:51.211 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:53.099 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:53.240 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:53.459 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:55.152 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:55.270 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:55.270 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:16:55.271 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:16:55.503 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:57.180 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:57.180 request: /nacos/v1/ns/instance/list failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
WARN 10/20 15:16:57.180 [NA] failed to update serviceName: DEFAULT_GROUP@@npt-mvcall-service
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance/list after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:57.523 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:59.568 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:16:59.568 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:16:59.568 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:02.319 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:03.630 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:04.360 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:05.665 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:06.400 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:07.695 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:08.415 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:08.416 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:17:08.416 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:17:09.742 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:09.742 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:09.742 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:13.791 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:15.457 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:15.832 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:17.486 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:17.886 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:19.502 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:19.908 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:19.908 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:19.908 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:21.555 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:21.555 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:17:21.555 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:17:23.970 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:26.002 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:28.047 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:28.610 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:30.086 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:30.086 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:30.086 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:30.630 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:31.209 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:32.654 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:33.249 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:34.155 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:34.708 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:34.708 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:17:34.708 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:17:35.277 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:36.186 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:37.302 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:37.302 request: /nacos/v1/ns/instance/list failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
WARN 10/20 15:17:37.302 [NA] failed to update serviceName: DEFAULT_GROUP@@npt-mvcall-service
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance/list after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:38.239 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:40.254 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:40.254 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:40.254 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:41.770 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:43.810 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:44.301 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:45.846 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:46.346 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:47.877 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:47.877 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:17:47.877 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:17:48.377 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:50.418 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:50.418 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:50.418 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:54.461 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:54.916 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:56.486 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:56.939 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:17:58.517 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:17:58.969 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:00.531 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:00.531 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:00.531 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:01.216 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:01.216 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:18:01.216 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:18:04.570 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:06.601 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:08.262 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:08.655 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:10.301 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:10.692 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:10.692 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:10.692 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:12.346 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:14.386 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:14.386 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:18:14.386 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:18:14.947 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:17.053 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:19.094 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:21.123 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:21.123 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:21.123 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:21.430 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:23.471 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:25.193 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:25.530 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:27.230 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:27.563 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:27.563 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:18:27.563 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:18:29.269 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:31.316 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:31.316 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:31.316 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:34.630 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:35.379 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:36.676 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:37.417 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:38.708 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:39.353 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:39.463 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:40.738 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:40.738 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:18:40.738 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:18:41.401 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:41.495 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:41.495 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:41.495 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:43.446 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:45.479 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:45.479 request: /nacos/v1/ns/instance/list failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
WARN 10/20 15:18:45.479 [NA] failed to update serviceName: DEFAULT_GROUP@@npt-mvcall-service
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance/list after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.queryList(NamingProxy.java:400)
    at com.alibaba.nacos.client.naming.core.HostReactor.updateService(HostReactor.java:339)
    at com.alibaba.nacos.client.naming.core.HostReactor$UpdateTask.run(HostReactor.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:45.557 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:47.590 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:47.775 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:49.621 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:49.822 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:51.660 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:51.660 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:51.661 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:51.877 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:53.928 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:18:53.929 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:18:53.933 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:18:55.711 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:57.749 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:18:59.803 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:01.000 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:01.856 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:01.857 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:01.857 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:03.051 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:05.083 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:05.892 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:07.136 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:07.137 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:19:07.138 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:19:07.933 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:09.973 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:12.009 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:12.010 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:12.010 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:14.201 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:15.943 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:15.969 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:15.989 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:15.999 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:16.004 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:16.010 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:16.015 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:16.021 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:16.026 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 10/20 15:19:16.031 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:16.054 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:16.255 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:18.091 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:18.301 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:20.132 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:20.317 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:20.317 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:19:20.317 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":false}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:19:22.163 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:22.163 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:22.163 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:26.201 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:27.348 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:28.242 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:29.383 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:30.289 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
INFO 10/20 15:19:30.851 Shutting down ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 10/20 15:19:30.851 [LISTENER] removing DEFAULT_GROUP@@npt-mvcall-service with DEFAULT from listener map
INFO 10/20 15:19:30.851 Shutting down ExecutorService 'applicationTaskExecutor'
ERROR 10/20 15:19:31.429 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
INFO 10/20 15:19:31.710 De-registering from Nacos Server now...
INFO 10/20 15:19:31.710 [BEAT] removing beat: DEFAULT_GROUP@@npt-mvcall-service:192.168.3.154:8081 from beat map.
INFO 10/20 15:19:31.710 [DEREGISTER-SERVICE] nobelgw deregistering service DEFAULT_GROUP@@npt-mvcall-service with instance: Instance{instanceId='null', ip='192.168.3.154', port=8081, weight=1.0, healthy=true, enabled=true, ephemeral=true, clusterName='DEFAULT', serviceName='null', metadata={}}
ERROR 10/20 15:19:32.351 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:32.351 [fixed-127.0.0.1_8848-nobelgw] [check-update] get changed dataId exception
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:32.351 longPolling error :
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
    at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:180)
    at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:68)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:465)
    at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:432)
    at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:620)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:33.475 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 10/20 15:19:33.475 request: /nacos/v1/ns/instance/beat failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:19:33.475 [CLIENT-BEAT] failed to send beat: {"port":8081,"ip":"192.168.3.154","weight":1.0,"serviceName":"DEFAULT_GROUP@@npt-mvcall-service","cluster":"DEFAULT","metadata":{"preserved.register.source":"SPRING_CLOUD"},"scheduled":false,"period":5000,"stopped":true}, code: 500, msg: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
ERROR 10/20 15:19:33.756 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:264)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:240)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:226)
    at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:98)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:347)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:177)
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:242)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1092)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1085)
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1061)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1030)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:170)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:979)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:517)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:112)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer$SpringBootContextLoaderListener.contextDestroyed(SpringBootServletInitializer.java:245)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4688)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:471)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:791)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:468)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)
ERROR 10/20 15:19:35.787 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:264)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:240)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:226)
    at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:98)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:347)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:177)
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:242)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1092)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1085)
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1061)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1030)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:170)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:979)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:517)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:112)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer$SpringBootContextLoaderListener.contextDestroyed(SpringBootServletInitializer.java:245)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4688)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:471)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:791)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:468)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)
ERROR 10/20 15:19:36.428 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:37.865 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:264)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:240)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:226)
    at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:98)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:347)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:177)
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:242)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1092)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1085)
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1061)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1030)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:170)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:979)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:517)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:112)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer$SpringBootContextLoaderListener.contextDestroyed(SpringBootServletInitializer.java:245)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4688)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:471)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:791)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:468)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)
ERROR 10/20 15:19:38.459 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 10/20 15:19:39.927 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:264)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:240)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:226)
    at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:98)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:347)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:177)
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:242)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1092)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1085)
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1061)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1030)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:170)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:979)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:517)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:112)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer$SpringBootContextLoaderListener.contextDestroyed(SpringBootServletInitializer.java:245)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4688)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:471)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:791)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:468)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)
ERROR 10/20 15:19:39.927 request: /nacos/v1/ns/instance failed, servers: [127.0.0.1:8848], code: 500, msg: Connection refused: connect
ERROR 10/20 15:19:39.927 ERR_NACOS_DEREGISTER, de-register failed...NacosRegistration{nacosDiscoveryProperties=NacosDiscoveryProperties{serverAddr='127.0.0.1:8848', endpoint='', namespace='nobelgw', watchDelay=30000, logName='', service='npt-mvcall-service', weight=1.0, clusterName='DEFAULT', group='DEFAULT_GROUP', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='192.168.3.154', networkInterface='', port=8081, secure=false, accessKey='', secretKey='', heartBeatInterval=null, heartBeatTimeout=null, ipDeleteTimeout=null}},
com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848]) tried: java.net.ConnectException: Connection refused: connect
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:552)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:264)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:240)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:226)
    at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:98)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:347)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:177)
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:242)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1092)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1085)
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1061)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1030)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:170)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:979)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:517)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:112)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer$SpringBootContextLoaderListener.contextDestroyed(SpringBootServletInitializer.java:245)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4688)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:471)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:791)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:468)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)
INFO 10/20 15:19:39.927 De-registration finished.
INFO 10/20 15:19:39.927 com.alibaba.nacos.client.naming.beat.BeatReactor do shutdown begin
INFO 10/20 15:19:39.927 com.alibaba.nacos.client.naming.beat.BeatReactor do shutdown stop
INFO 10/20 15:19:39.927 com.alibaba.nacos.client.naming.core.EventDispatcher do shutdown begin
ERROR 10/20 15:19:40.521 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:06:02 CST 2023

Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:06:04 CST 2023

mvc-Log

Log session start time Tue Dec 05 13:13:28 CST 2023

Level Date Message
INFO 12/05 13:06:04.047 LOCAL_SNAPSHOT_PATH:C:\WINDOWS\system32\config\systemprofile\nacos\config
INFO 12/05 13:06:04.078 isMultiInstance:false
WARN 12/05 13:06:04.094 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service] & group[DEFAULT_GROUP]
WARN 12/05 13:06:04.094 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service.yaml] & group[DEFAULT_GROUP]
WARN 12/05 13:06:04.094 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service-base.yaml] & group[DEFAULT_GROUP]
INFO 12/05 13:06:04.110 Located property source: [BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-prod.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-base.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-global-config.properties,DEFAULT_GROUP'}]
INFO 12/05 13:06:04.125 The following profiles are active: base,prod
WARN 12/05 13:06:05.547 Endpoint ID 'nacos-config' contains invalid characters, please migrate to a valid format.
WARN 12/05 13:06:05.547 Endpoint ID 'nacos-discovery' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:06:05.984 Multiple Spring Data modules found, entering strict repository configuration mode!
INFO 12/05 13:06:05.984 Bootstrapping Spring Data Redis repositories in DEFAULT mode.
INFO 12/05 13:06:06.078 Finished Spring Data repository scanning in 63ms. Found 0 Redis repository interfaces.
WARN 12/05 13:06:06.203 Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:06:06.547 BeanFactory id=4c7ec24a-79a2-3840-8fdc-d2c5f36603e6
INFO 12/05 13:06:06.734 Root WebApplicationContext: initialization completed in 2593 ms
INFO 12/05 13:06:06.750 Instantiating StrutsPrepareAndExecuteFilter
INFO 12/05 13:06:07.437 Provided ConnectionFactory implementation is JMS 2.0+ capable.
INFO 12/05 13:06:09.030 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:06:09.046 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:06:09.437 Initializing ExecutorService 'applicationTaskExecutor'
INFO 12/05 13:06:10.030 Initializing ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 12/05 13:06:10.030 initializer namespace from System Property :null
INFO 12/05 13:06:10.030 initializer namespace from System Environment :null
INFO 12/05 13:06:10.030 initializer namespace from System Property :null
WARN 12/05 13:06:10.702 Cannot find template location(s): [classpath:/templates/] (please add some templates, check your FreeMarker configuration, or set spring.freemarker.checkTemplateLocation=false)
INFO 12/05 13:06:10.858 Exposing 23 endpoint(s) beneath base path '/actuator'
Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:13:29 CST 2023

Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:13:31 CST 2023

mvc-Log

Log session start time Tue Dec 05 13:17:06 CST 2023

Level Date Message
INFO 12/05 13:13:32.017 LOCAL_SNAPSHOT_PATH:C:\WINDOWS\system32\config\systemprofile\nacos\config
INFO 12/05 13:13:32.091 isMultiInstance:false
WARN 12/05 13:13:32.103 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service] & group[DEFAULT_GROUP]
WARN 12/05 13:13:32.109 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service.yaml] & group[DEFAULT_GROUP]
WARN 12/05 13:13:32.114 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service-base.yaml] & group[DEFAULT_GROUP]
INFO 12/05 13:13:32.123 Located property source: [BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-prod.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-base.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-global-config.properties,DEFAULT_GROUP'}]
INFO 12/05 13:13:32.138 The following profiles are active: base,prod
WARN 12/05 13:13:36.451 Endpoint ID 'nacos-config' contains invalid characters, please migrate to a valid format.
WARN 12/05 13:13:36.467 Endpoint ID 'nacos-discovery' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:13:36.801 Multiple Spring Data modules found, entering strict repository configuration mode!
INFO 12/05 13:13:36.819 Bootstrapping Spring Data Redis repositories in DEFAULT mode.
INFO 12/05 13:13:36.923 Finished Spring Data repository scanning in 77ms. Found 0 Redis repository interfaces.
WARN 12/05 13:13:37.050 Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:13:37.285 BeanFactory id=4c7ec24a-79a2-3840-8fdc-d2c5f36603e6
INFO 12/05 13:13:37.414 Root WebApplicationContext: initialization completed in 5247 ms
INFO 12/05 13:13:37.414 Instantiating StrutsPrepareAndExecuteFilter
INFO 12/05 13:13:37.849 Provided ConnectionFactory implementation is JMS 2.0+ capable.
INFO 12/05 13:13:39.251 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:13:39.259 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:13:39.570 Initializing ExecutorService 'applicationTaskExecutor'
INFO 12/05 13:13:40.061 Initializing ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 12/05 13:13:40.077 initializer namespace from System Property :null
INFO 12/05 13:13:40.077 initializer namespace from System Environment :null
INFO 12/05 13:13:40.077 initializer namespace from System Property :null
WARN 12/05 13:13:40.842 Cannot find template location(s): [classpath:/templates/] (please add some templates, check your FreeMarker configuration, or set spring.freemarker.checkTemplateLocation=false)
INFO 12/05 13:13:41.009 Exposing 23 endpoint(s) beneath base path '/actuator'
INFO 12/05 13:13:41.283 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.376 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.449 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.504 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.526 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.537 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.552 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.562 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.571 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.579 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:13:41.876 [LISTENER] adding DEFAULT_GROUP@@npt-mvcall-service with DEFAULT to listener map
INFO 12/05 13:13:41.896 Bean初始化I18N;language[zh];country[TW]
INFO 12/05 13:13:41.943 Started ServletInitializer in 13.257 seconds (JVM running for 32.136)
INFO 12/05 13:13:41.959 [BEAT] adding beat: BeatInfo{port=8081, ip='192.168.3.63', weight=1.0, serviceName='DEFAULT_GROUP@@npt-mvcall-service', cluster='DEFAULT', metadata={preserved.register.source=SPRING_CLOUD}, scheduled=false, period=5000, stopped=false} to beat map.
INFO 12/05 13:13:41.959 [REGISTER-SERVICE] nobelgw registering service DEFAULT_GROUP@@npt-mvcall-service with instance: Instance{instanceId='null', ip='192.168.3.63', port=8081, weight=1.0, healthy=true, enabled=true, ephemeral=true, clusterName='DEFAULT', serviceName='null', metadata={preserved.register.source=SPRING_CLOUD}}
INFO 12/05 13:13:42.166 nacos registry, DEFAULT_GROUP npt-mvcall-service 192.168.3.63:8081 register finished
INFO 12/05 13:13:42.169 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-base.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:13:42.172 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-base.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:13:42.172 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-prod.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:13:42.172 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-prod.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:13:42.174 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-global-config.properties+DEFAULT_GROUP+nobelgw
INFO 12/05 13:13:42.174 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-global-config.properties, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:13:42.174 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:13:42.174 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:13:42.174 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service+DEFAULT_GROUP+nobelgw
INFO 12/05 13:13:42.174 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:13:42.178 监听到tomcat启动 time=[2023-12-05 13:13:42]
INFO 12/05 13:13:42.178 时间存储完成 runTime=[2023-12-05 13:13:42]
INFO 12/05 13:13:42.405 Parsing configuration file [struts-default.xml]
INFO 12/05 13:13:42.483 Parsing configuration file [struts-plugin.xml]
INFO 12/05 13:13:42.873 Parsing configuration file [struts.xml]
INFO 12/05 13:13:42.873 Choosing bean (spring) for (com.opensymphony.xwork2.ObjectFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ActionFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ResultFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ConverterFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.factory.InterceptorFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ValidatorFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.factory.UnknownHandlerFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.FileManagerFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.XWorkConverter)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.CollectionConverter)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.ArrayConverter)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.DateConverter)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.NumberConverter)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.StringConverter)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionPropertiesProcessor)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionFileProcessor)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionAnnotationProcessor)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterCreator)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterHolder)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.TextProvider)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.LocaleProvider)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.ActionProxyFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ObjectTypeDeterminer)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.dispatcher.mapper.ActionMapper)
INFO 12/05 13:13:42.873 Choosing bean (jakarta) for (org.apache.struts2.dispatcher.multipart.MultiPartRequest)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.views.freemarker.FreemarkerManager)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.components.UrlRenderer)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.validator.ActionValidatorManager)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.util.ValueStackFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionProvider)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionContextFactory)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.util.PatternMatcher)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.util.ContentTypeMatcher)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.dispatcher.StaticContentLoader)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.UnknownHandlerManager)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.views.util.UrlHelper)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.util.TextParser)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (org.apache.struts2.dispatcher.DispatcherErrorHandler)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.security.ExcludedPatternsChecker)
INFO 12/05 13:13:42.873 Choosing bean (struts) for (com.opensymphony.xwork2.security.AcceptedPatternsChecker)
INFO 12/05 13:13:42.873 Loading global messages from [global]
INFO 12/05 13:13:42.891 Initializing Struts-Spring integration...
INFO 12/05 13:13:42.891 Setting autowire strategy to name
INFO 12/05 13:13:42.891 ... initialized Struts-Spring integration successfully
INFO 12/05 13:13:42.930 new ips(1) service: DEFAULT_GROUP@@npt-mvcall-service@@DEFAULT -> [{"instanceId":"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service","ip":"192.168.3.63","port":8081,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@npt-mvcall-service","metadata":{"preserved.register.source":"SPRING_CLOUD"},"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"ipDeleteTimeout":30000}]
INFO 12/05 13:13:42.942 current ips:(1) service: DEFAULT_GROUP@@npt-mvcall-service@@DEFAULT -> [{"instanceId":"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service","ip":"192.168.3.63","port":8081,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@npt-mvcall-service","metadata":{"preserved.register.source":"SPRING_CLOUD"},"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"ipDeleteTimeout":30000}]
INFO 12/05 13:13:43.194 received push data: {"type":"dom","data":"{\"hosts\":[{\"ip\":\"192.168.3.63\",\"port\":8081,\"valid\":true,\"healthy\":true,\"marked\":false,\"instanceId\":\"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service\",\"metadata\":{\"preserved.register.source\":\"SPRING_CLOUD\"},\"enabled\":true,\"weight\":1.0,\"clusterName\":\"DEFAULT\",\"serviceName\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"ephemeral\":true}],\"dom\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"name\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"cacheMillis\":10000,\"lastRefTime\":1701753223193,\"checksum\":\"7646840325b6b8bfc6fe399ff2344874\",\"useSpecifiedURL\":false,\"clusters\":\"DEFAULT\",\"env\":\"\",\"metadata\":{}}","lastRefTime":46145822000} from /192.168.3.63
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:16:21.783 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
INFO 12/05 13:16:23.642 Shutting down ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 12/05 13:16:23.642 [LISTENER] removing DEFAULT_GROUP@@npt-mvcall-service with DEFAULT from listener map
INFO 12/05 13:16:23.642 Shutting down ExecutorService 'applicationTaskExecutor'
ERROR 12/05 13:16:26.282 [NACOS ConnectException] currentServerAddr: http://127.0.0.1:8848, httpCode: 500
ERROR 12/05 13:16:28.329 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 12/05 13:16:29.562 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
INFO 12/05 13:16:30.218 De-registering from Nacos Server now...
INFO 12/05 13:16:30.218 [BEAT] removing beat: DEFAULT_GROUP@@npt-mvcall-service:192.168.3.63:8081 from beat map.
INFO 12/05 13:16:30.218 [DEREGISTER-SERVICE] nobelgw deregistering service DEFAULT_GROUP@@npt-mvcall-service with instance: Instance{instanceId='null', ip='192.168.3.63', port=8081, weight=1.0, healthy=true, enabled=true, ephemeral=true, clusterName='DEFAULT', serviceName='null', metadata={}}
ERROR 12/05 13:16:30.390 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:17:07 CST 2023

Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:17:09 CST 2023

mvc-Log

Log session start time Tue Dec 05 13:53:51 CST 2023

Level Date Message
INFO 12/05 13:17:09.677 LOCAL_SNAPSHOT_PATH:C:\WINDOWS\system32\config\systemprofile\nacos\config
INFO 12/05 13:17:10.063 isMultiInstance:false
WARN 12/05 13:17:10.160 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service] & group[DEFAULT_GROUP]
WARN 12/05 13:17:10.172 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service.yaml] & group[DEFAULT_GROUP]
WARN 12/05 13:17:10.188 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service-base.yaml] & group[DEFAULT_GROUP]
INFO 12/05 13:17:10.209 Located property source: [BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-prod.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-base.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-global-config.properties,DEFAULT_GROUP'}]
INFO 12/05 13:17:10.215 The following profiles are active: base,prod
ERROR 12/05 13:17:10.315 [SecurityProxy] login http request failed url: http://127.0.0.1:8848/nacos/v1/auth/users/login, params: {username=nacos}, bodyMap: {password=nacos}, errorMsg: errCode: 100, errMsg: Nacos serialize for class [com.alibaba.nacos.common.http.HttpRestResult] failed.
WARN 12/05 13:17:15.912 Endpoint ID 'nacos-config' contains invalid characters, please migrate to a valid format.
WARN 12/05 13:17:15.922 Endpoint ID 'nacos-discovery' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:17:16.538 Multiple Spring Data modules found, entering strict repository configuration mode!
INFO 12/05 13:17:16.549 Bootstrapping Spring Data Redis repositories in DEFAULT mode.
INFO 12/05 13:17:16.653 Finished Spring Data repository scanning in 67ms. Found 0 Redis repository interfaces.
WARN 12/05 13:17:16.838 Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:17:17.412 BeanFactory id=4c7ec24a-79a2-3840-8fdc-d2c5f36603e6
INFO 12/05 13:17:17.598 Root WebApplicationContext: initialization completed in 7355 ms
INFO 12/05 13:17:17.613 Instantiating StrutsPrepareAndExecuteFilter
INFO 12/05 13:17:18.227 Provided ConnectionFactory implementation is JMS 2.0+ capable.
INFO 12/05 13:17:20.218 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:17:20.246 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:17:20.620 Initializing ExecutorService 'applicationTaskExecutor'
INFO 12/05 13:17:21.321 Initializing ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 12/05 13:17:21.335 initializer namespace from System Property :null
INFO 12/05 13:17:21.336 initializer namespace from System Environment :null
INFO 12/05 13:17:21.337 initializer namespace from System Property :null
WARN 12/05 13:17:22.073 Cannot find template location(s): [classpath:/templates/] (please add some templates, check your FreeMarker configuration, or set spring.freemarker.checkTemplateLocation=false)
INFO 12/05 13:17:22.238 Exposing 23 endpoint(s) beneath base path '/actuator'
INFO 12/05 13:17:22.511 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.617 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.633 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.650 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.663 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.730 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.769 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.785 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.802 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:22.809 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:17:23.176 [LISTENER] adding DEFAULT_GROUP@@npt-mvcall-service with DEFAULT to listener map
INFO 12/05 13:17:23.186 Bean初始化I18N;language[zh];country[TW]
INFO 12/05 13:17:23.252 Started ServletInitializer in 16.758 seconds (JVM running for 38.246)
INFO 12/05 13:17:23.269 [BEAT] adding beat: BeatInfo{port=8081, ip='192.168.3.63', weight=1.0, serviceName='DEFAULT_GROUP@@npt-mvcall-service', cluster='DEFAULT', metadata={preserved.register.source=SPRING_CLOUD}, scheduled=false, period=5000, stopped=false} to beat map.
INFO 12/05 13:17:23.270 [REGISTER-SERVICE] nobelgw registering service DEFAULT_GROUP@@npt-mvcall-service with instance: Instance{instanceId='null', ip='192.168.3.63', port=8081, weight=1.0, healthy=true, enabled=true, ephemeral=true, clusterName='DEFAULT', serviceName='null', metadata={preserved.register.source=SPRING_CLOUD}}
INFO 12/05 13:17:23.706 nacos registry, DEFAULT_GROUP npt-mvcall-service 192.168.3.63:8081 register finished
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-base.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-base.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-prod.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-prod.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-global-config.properties+DEFAULT_GROUP+nobelgw
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-global-config.properties, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service+DEFAULT_GROUP+nobelgw
INFO 12/05 13:17:23.710 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:17:23.710 监听到tomcat启动 time=[2023-12-05 13:17:23]
INFO 12/05 13:17:23.710 时间存储完成 runTime=[2023-12-05 13:17:23]
INFO 12/05 13:17:23.925 Parsing configuration file [struts-default.xml]
INFO 12/05 13:17:23.995 Parsing configuration file [struts-plugin.xml]
INFO 12/05 13:17:24.212 new ips(1) service: DEFAULT_GROUP@@npt-mvcall-service@@DEFAULT -> [{"instanceId":"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service","ip":"192.168.3.63","port":8081,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@npt-mvcall-service","metadata":{"preserved.register.source":"SPRING_CLOUD"},"ipDeleteTimeout":30000,"instanceHeartBeatInterval":5000,"instanceHeartBeatTimeOut":15000}]
INFO 12/05 13:17:24.224 current ips:(1) service: DEFAULT_GROUP@@npt-mvcall-service@@DEFAULT -> [{"instanceId":"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service","ip":"192.168.3.63","port":8081,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@npt-mvcall-service","metadata":{"preserved.register.source":"SPRING_CLOUD"},"ipDeleteTimeout":30000,"instanceHeartBeatInterval":5000,"instanceHeartBeatTimeOut":15000}]
INFO 12/05 13:17:24.388 Parsing configuration file [struts.xml]
INFO 12/05 13:17:24.388 Choosing bean (spring) for (com.opensymphony.xwork2.ObjectFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ActionFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ResultFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ConverterFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.factory.InterceptorFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ValidatorFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.factory.UnknownHandlerFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.FileManagerFactory)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.XWorkConverter)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.CollectionConverter)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.ArrayConverter)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.DateConverter)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.NumberConverter)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.StringConverter)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionPropertiesProcessor)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionFileProcessor)
INFO 12/05 13:17:24.397 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionAnnotationProcessor)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterCreator)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterHolder)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (com.opensymphony.xwork2.TextProvider)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (com.opensymphony.xwork2.LocaleProvider)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (com.opensymphony.xwork2.ActionProxyFactory)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ObjectTypeDeterminer)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (org.apache.struts2.dispatcher.mapper.ActionMapper)
INFO 12/05 13:17:24.399 Choosing bean (jakarta) for (org.apache.struts2.dispatcher.multipart.MultiPartRequest)
INFO 12/05 13:17:24.399 Choosing bean (struts) for (org.apache.struts2.views.freemarker.FreemarkerManager)
INFO 12/05 13:17:24.401 Choosing bean (struts) for (org.apache.struts2.components.UrlRenderer)
INFO 12/05 13:17:24.402 Choosing bean (struts) for (com.opensymphony.xwork2.validator.ActionValidatorManager)
INFO 12/05 13:17:24.402 Choosing bean (struts) for (com.opensymphony.xwork2.util.ValueStackFactory)
INFO 12/05 13:17:24.402 Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionProvider)
INFO 12/05 13:17:24.402 Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionContextFactory)
INFO 12/05 13:17:24.402 Choosing bean (struts) for (com.opensymphony.xwork2.util.PatternMatcher)
INFO 12/05 13:17:24.402 Choosing bean (struts) for (org.apache.struts2.util.ContentTypeMatcher)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (org.apache.struts2.dispatcher.StaticContentLoader)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (com.opensymphony.xwork2.UnknownHandlerManager)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (org.apache.struts2.views.util.UrlHelper)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (com.opensymphony.xwork2.util.TextParser)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (org.apache.struts2.dispatcher.DispatcherErrorHandler)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (com.opensymphony.xwork2.security.ExcludedPatternsChecker)
INFO 12/05 13:17:24.403 Choosing bean (struts) for (com.opensymphony.xwork2.security.AcceptedPatternsChecker)
INFO 12/05 13:17:24.405 Loading global messages from [global]
INFO 12/05 13:17:24.405 Initializing Struts-Spring integration...
INFO 12/05 13:17:24.405 Setting autowire strategy to name
INFO 12/05 13:17:24.405 ... initialized Struts-Spring integration successfully
INFO 12/05 13:17:24.746 received push data: {"type":"dom","data":"{\"hosts\":[{\"ip\":\"192.168.3.63\",\"port\":8081,\"valid\":true,\"healthy\":true,\"marked\":false,\"instanceId\":\"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service\",\"metadata\":{\"preserved.register.source\":\"SPRING_CLOUD\"},\"enabled\":true,\"weight\":1.0,\"clusterName\":\"DEFAULT\",\"serviceName\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"ephemeral\":true}],\"dom\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"name\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"cacheMillis\":10000,\"lastRefTime\":1701753444744,\"checksum\":\"7646840325b6b8bfc6fe399ff2344874\",\"useSpecifiedURL\":false,\"clusters\":\"DEFAULT\",\"env\":\"\",\"metadata\":{}}","lastRefTime":46697526400} from /192.168.3.63
INFO 12/05 13:18:46.986 Initializing Servlet 'dispatcherServlet'
INFO 12/05 13:18:47.000 Completed initialization in 14 ms
INFO 12/05 13:30:06.891 用戶開始在PC頁面登入:start=[1701754206891]毫秒;
INFO 12/05 13:30:06.989 用戶完成ID为 :2 登入，start3=[1701754206989]用時 :[98];總用時：[98]毫秒
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.400 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
WARN 12/05 13:53:10.399 Transport (tcp://127.0.0.1:61616) failed , attempting to automatically reconnect: {}
java.io.EOFException: null
    at java.io.DataInputStream.readInt(DataInputStream.java:392)
    at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268)
    at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
    at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232)
    at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
    at java.lang.Thread.run(Thread.java:748)
INFO 12/05 13:53:12.714 Shutting down ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 12/05 13:53:12.715 [LISTENER] removing DEFAULT_GROUP@@npt-mvcall-service with DEFAULT from listener map
INFO 12/05 13:53:12.717 Shutting down ExecutorService 'applicationTaskExecutor'
INFO 12/05 13:53:14.631 De-registering from Nacos Server now...
INFO 12/05 13:53:14.632 [BEAT] removing beat: DEFAULT_GROUP@@npt-mvcall-service:192.168.3.63:8081 from beat map.
INFO 12/05 13:53:14.633 [DEREGISTER-SERVICE] nobelgw deregistering service DEFAULT_GROUP@@npt-mvcall-service with instance: Instance{instanceId='null', ip='192.168.3.63', port=8081, weight=1.0, healthy=true, enabled=true, ephemeral=true, clusterName='DEFAULT', serviceName='null', metadata={}}
ERROR 12/05 13:53:15.155 [NACOS ConnectException] currentServerAddr: http://127.0.0.1:8848, httpCode: 500
ERROR 12/05 13:53:15.414 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:840)
    at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:678)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1607)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1512)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
    at com.alibaba.nacos.common.http.client.response.JdkHttpClientResponse.getStatusCode(JdkHttpClientResponse.java:75)
    at com.alibaba.nacos.common.http.client.handler.AbstractResponseHandler.handle(AbstractResponseHandler.java:43)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:483)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
ERROR 12/05 13:53:16.681 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:524)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:486)
    at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:264)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:240)
    at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:226)
    at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:98)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:347)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:177)
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:242)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1092)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1085)
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1061)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1030)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:170)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:979)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:517)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:112)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer$SpringBootContextLoaderListener.contextDestroyed(SpringBootServletInitializer.java:245)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4688)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1441)
    at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1430)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:997)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:471)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:791)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:468)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)
ERROR 12/05 13:53:17.182 [NACOS ConnectException httpPost] currentServerAddr: http://127.0.0.1:8848, err : Connection refused: connect
ERROR 12/05 13:53:17.460 [NA] failed to request
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
    at java.net.Socket.connect(Socket.java:606)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1240)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1167)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1061)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:995)
    at com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest.execute(JdkHttpClientRequest.java:109)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.execute(NacosRestTemplate.java:482)
    at com.alibaba.nacos.common.http.client.NacosRestTemplate.exchangeForm(NacosRestTemplate.java:427)
    at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:599)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:538)
    at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:491)
    at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:426)
    at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:167)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:53:52 CST 2023

Level Date Message
mvc-Log

Log session start time Tue Dec 05 13:53:55 CST 2023

Level Date Message
INFO 12/05 13:53:55.178 LOCAL_SNAPSHOT_PATH:C:\WINDOWS\system32\config\systemprofile\nacos\config
INFO 12/05 13:53:55.264 isMultiInstance:false
WARN 12/05 13:53:55.275 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service] & group[DEFAULT_GROUP]
WARN 12/05 13:53:55.284 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service.yaml] & group[DEFAULT_GROUP]
WARN 12/05 13:53:55.300 Ignore the empty nacos configuration and get it based on dataId[npt-mvcall-service-base.yaml] & group[DEFAULT_GROUP]
INFO 12/05 13:53:55.320 Located property source: [BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-prod.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-base.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service,DEFAULT_GROUP'}, BootstrapPropertySource {name='bootstrapProperties-npt-mvcall-service-global-config.properties,DEFAULT_GROUP'}]
INFO 12/05 13:53:55.331 The following profiles are active: base,prod
WARN 12/05 13:54:00.644 Endpoint ID 'nacos-config' contains invalid characters, please migrate to a valid format.
WARN 12/05 13:54:00.651 Endpoint ID 'nacos-discovery' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:54:01.238 Multiple Spring Data modules found, entering strict repository configuration mode!
INFO 12/05 13:54:01.249 Bootstrapping Spring Data Redis repositories in DEFAULT mode.
INFO 12/05 13:54:01.371 Finished Spring Data repository scanning in 84ms. Found 0 Redis repository interfaces.
WARN 12/05 13:54:01.511 Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
INFO 12/05 13:54:01.792 BeanFactory id=4c7ec24a-79a2-3840-8fdc-d2c5f36603e6
INFO 12/05 13:54:01.953 Root WebApplicationContext: initialization completed in 6586 ms
INFO 12/05 13:54:01.961 Instantiating StrutsPrepareAndExecuteFilter
INFO 12/05 13:54:02.494 Provided ConnectionFactory implementation is JMS 2.0+ capable.
INFO 12/05 13:54:04.134 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:54:04.149 URLs to be used as dynamic configuration source: [jar:file:/D:/server/tomcat9/webapps/ROOT/WEB-INF/lib/nptcore-1.0.0.jar!/config.properties]
INFO 12/05 13:54:04.515 Initializing ExecutorService 'applicationTaskExecutor'
INFO 12/05 13:54:05.086 Initializing ExecutorService 'Nacos-Watch-Task-Scheduler'
INFO 12/05 13:54:05.099 initializer namespace from System Property :null
INFO 12/05 13:54:05.100 initializer namespace from System Environment :null
INFO 12/05 13:54:05.101 initializer namespace from System Property :null
WARN 12/05 13:54:05.873 Cannot find template location(s): [classpath:/templates/] (please add some templates, check your FreeMarker configuration, or set spring.freemarker.checkTemplateLocation=false)
INFO 12/05 13:54:06.056 Exposing 23 endpoint(s) beneath base path '/actuator'
INFO 12/05 13:54:06.359 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.470 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.486 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.501 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.749 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.760 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.772 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.781 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.796 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:06.808 Successfully connected to tcp://127.0.0.1:61616
INFO 12/05 13:54:07.199 [LISTENER] adding DEFAULT_GROUP@@npt-mvcall-service with DEFAULT to listener map
INFO 12/05 13:54:07.216 Bean初始化I18N;language[zh];country[TW]
INFO 12/05 13:54:07.272 Started ServletInitializer in 15.592 seconds (JVM running for 35.187)
INFO 12/05 13:54:07.291 [BEAT] adding beat: BeatInfo{port=8081, ip='192.168.3.63', weight=1.0, serviceName='DEFAULT_GROUP@@npt-mvcall-service', cluster='DEFAULT', metadata={preserved.register.source=SPRING_CLOUD}, scheduled=false, period=5000, stopped=false} to beat map.
INFO 12/05 13:54:07.293 [REGISTER-SERVICE] nobelgw registering service DEFAULT_GROUP@@npt-mvcall-service with instance: Instance{instanceId='null', ip='192.168.3.63', port=8081, weight=1.0, healthy=true, enabled=true, ephemeral=true, clusterName='DEFAULT', serviceName='null', metadata={preserved.register.source=SPRING_CLOUD}}
INFO 12/05 13:54:07.784 nacos registry, DEFAULT_GROUP npt-mvcall-service 192.168.3.63:8081 register finished
INFO 12/05 13:54:07.790 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-base.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:54:07.792 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-base.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:54:07.792 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-prod.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:54:07.793 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-prod.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:54:07.793 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service-global-config.properties+DEFAULT_GROUP+nobelgw
INFO 12/05 13:54:07.794 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service-global-config.properties, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:54:07.794 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service.yaml+DEFAULT_GROUP+nobelgw
INFO 12/05 13:54:07.794 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service.yaml, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:54:07.794 [fixed-127.0.0.1_8848-nobelgw] [subscribe] npt-mvcall-service+DEFAULT_GROUP+nobelgw
INFO 12/05 13:54:07.794 [fixed-127.0.0.1_8848-nobelgw] [add-listener] ok, tenant=nobelgw, dataId=npt-mvcall-service, group=DEFAULT_GROUP, cnt=1
INFO 12/05 13:54:07.800 监听到tomcat启动 time=[2023-12-05 13:54:07]
INFO 12/05 13:54:07.800 时间存储完成 runTime=[2023-12-05 13:54:07]
INFO 12/05 13:54:08.148 Parsing configuration file [struts-default.xml]
INFO 12/05 13:54:08.228 new ips(1) service: DEFAULT_GROUP@@npt-mvcall-service@@DEFAULT -> [{"instanceId":"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service","ip":"192.168.3.63","port":8081,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@npt-mvcall-service","metadata":{"preserved.register.source":"SPRING_CLOUD"},"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"ipDeleteTimeout":30000}]
INFO 12/05 13:54:08.245 current ips:(1) service: DEFAULT_GROUP@@npt-mvcall-service@@DEFAULT -> [{"instanceId":"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service","ip":"192.168.3.63","port":8081,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@npt-mvcall-service","metadata":{"preserved.register.source":"SPRING_CLOUD"},"instanceHeartBeatTimeOut":15000,"instanceHeartBeatInterval":5000,"ipDeleteTimeout":30000}]
INFO 12/05 13:54:08.294 Parsing configuration file [struts-plugin.xml]
INFO 12/05 13:54:08.805 Parsing configuration file [struts.xml]
INFO 12/05 13:54:08.825 Choosing bean (spring) for (com.opensymphony.xwork2.ObjectFactory)
INFO 12/05 13:54:08.826 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ActionFactory)
INFO 12/05 13:54:08.826 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ResultFactory)
INFO 12/05 13:54:08.826 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ConverterFactory)
INFO 12/05 13:54:08.826 Choosing bean (struts) for (com.opensymphony.xwork2.factory.InterceptorFactory)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.factory.ValidatorFactory)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.factory.UnknownHandlerFactory)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.FileManagerFactory)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.XWorkConverter)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.CollectionConverter)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.ArrayConverter)
INFO 12/05 13:54:08.827 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.DateConverter)
INFO 12/05 13:54:08.828 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.NumberConverter)
INFO 12/05 13:54:08.828 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.StringConverter)
INFO 12/05 13:54:08.828 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionPropertiesProcessor)
INFO 12/05 13:54:08.828 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionFileProcessor)
INFO 12/05 13:54:08.828 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ConversionAnnotationProcessor)
INFO 12/05 13:54:08.828 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterCreator)
INFO 12/05 13:54:08.833 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.TypeConverterHolder)
INFO 12/05 13:54:08.833 Choosing bean (struts) for (com.opensymphony.xwork2.TextProvider)
INFO 12/05 13:54:08.833 Choosing bean (struts) for (com.opensymphony.xwork2.LocaleProvider)
INFO 12/05 13:54:08.834 Choosing bean (struts) for (com.opensymphony.xwork2.ActionProxyFactory)
INFO 12/05 13:54:08.834 Choosing bean (struts) for (com.opensymphony.xwork2.conversion.ObjectTypeDeterminer)
INFO 12/05 13:54:08.834 Choosing bean (struts) for (org.apache.struts2.dispatcher.mapper.ActionMapper)
INFO 12/05 13:54:08.834 Choosing bean (jakarta) for (org.apache.struts2.dispatcher.multipart.MultiPartRequest)
INFO 12/05 13:54:08.835 Choosing bean (struts) for (org.apache.struts2.views.freemarker.FreemarkerManager)
INFO 12/05 13:54:08.841 received push data: {"type":"dom","data":"{\"hosts\":[{\"ip\":\"192.168.3.63\",\"port\":8081,\"valid\":true,\"healthy\":true,\"marked\":false,\"instanceId\":\"192.168.3.63#8081#DEFAULT#DEFAULT_GROUP@@npt-mvcall-service\",\"metadata\":{\"preserved.register.source\":\"SPRING_CLOUD\"},\"enabled\":true,\"weight\":1.0,\"clusterName\":\"DEFAULT\",\"serviceName\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"ephemeral\":true}],\"dom\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"name\":\"DEFAULT_GROUP@@npt-mvcall-service\",\"cacheMillis\":10000,\"lastRefTime\":1701755648832,\"checksum\":\"7646840325b6b8bfc6fe399ff2344874\",\"useSpecifiedURL\":false,\"clusters\":\"DEFAULT\",\"env\":\"\",\"metadata\":{}}","lastRefTime":43784752900} from /192.168.3.63
INFO 12/05 13:54:08.837 Choosing bean (struts) for (org.apache.struts2.components.UrlRenderer)
INFO 12/05 13:54:08.844 Choosing bean (struts) for (com.opensymphony.xwork2.validator.ActionValidatorManager)
INFO 12/05 13:54:08.844 Choosing bean (struts) for (com.opensymphony.xwork2.util.ValueStackFactory)
INFO 12/05 13:54:08.844 Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionProvider)
INFO 12/05 13:54:08.844 Choosing bean (struts) for (com.opensymphony.xwork2.util.reflection.ReflectionContextFactory)
INFO 12/05 13:54:08.844 Choosing bean (struts) for (com.opensymphony.xwork2.util.PatternMatcher)
INFO 12/05 13:54:08.844 Choosing bean (struts) for (org.apache.struts2.util.ContentTypeMatcher)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (org.apache.struts2.dispatcher.StaticContentLoader)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (com.opensymphony.xwork2.UnknownHandlerManager)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (org.apache.struts2.views.util.UrlHelper)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (com.opensymphony.xwork2.util.TextParser)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (org.apache.struts2.dispatcher.DispatcherErrorHandler)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (com.opensymphony.xwork2.security.ExcludedPatternsChecker)
INFO 12/05 13:54:08.845 Choosing bean (struts) for (com.opensymphony.xwork2.security.AcceptedPatternsChecker)
INFO 12/05 13:54:08.850 Loading global messages from [global]
INFO 12/05 13:54:08.868 Initializing Struts-Spring integration...
INFO 12/05 13:54:08.869 Setting autowire strategy to name
INFO 12/05 13:54:08.869 ... initialized Struts-Spring integration successfully
INFO 12/05 13:58:25.706 Initializing Servlet 'dispatcherServlet'
INFO 12/05 13:58:25.721 Completed initialization in 14 ms
INFO 12/05 13:58:31.773 用戶開始在PC頁面登入:start=[1701755911772]毫秒;
INFO 12/05 13:58:31.858 用戶完成ID为 :1 登入，start3=[1701755911858]用時 :[86];總用時：[86]毫秒
INFO 12/05 14:01:29.739 用戶開始在PC頁面登入:start=[1701756089739]毫秒;
INFO 12/05 14:01:29.784 用戶完成ID为 :2 登入，start3=[1701756089784]用時 :[45];總用時：[45]毫秒
INFO 12/05 14:14:50.030 用戶開始在PC頁面登入:start=[1701756890029]毫秒;
INFO 12/05 14:14:50.055 用戶完成ID为 :9 登入，start3=[1701756890055]用時 :[26];總用時：[26]毫秒
INFO 12/05 15:26:00.874 用戶開始在PC頁面登入:start=[1701761160874]毫秒;
INFO 12/05 15:26:00.896 用戶完成ID为 :18 登入，start3=[1701761160896]用時 :[22];總用時：[22]毫秒
INFO 12/05 16:39:55.090 用戶開始在PC頁面登入:start=[1701765595090]毫秒;
INFO 12/05 16:39:55.118 用戶完成ID为 :192 登入，start3=[1701765595118]用時 :[28];總用時：[28]毫秒
INFO 12/05 16:42:37.830 用戶開始在PC頁面登入:start=[1701765757830]毫秒;
INFO 12/05 16:42:37.856 用戶完成ID为 :223 登入，start3=[1701765757856]用時 :[26];總用時：[26]毫秒
INFO 12/05 16:47:36.891 用戶開始在PC頁面登入:start=[1701766056891]毫秒;
INFO 12/05 16:47:36.920 用戶完成ID为 :284 登入，start3=[1701766056920]用時 :[29];總用時：[29]毫秒