2025-07-16 19:24:46.425 [dubbo-client-idleCheck-thread-1] ERROR o.a.d.r.exchange.support.header.ReconnectTimerTask - [DUBBO] Fail to connect to HeaderExchangeClient [channel=org.apache.dubbo.remoting.transport.netty4.NettyClient [169.254.89.253:0 -> /172.17.0.3:20881]], dubbo version: 2.7.1, current host: 169.254.89.253 org.apache.dubbo.remoting.RemotingException: client(url: dubbo://172.17.0.3:20881/com.txz.operating.service.OperatingConfigDubboService?anyhost=true&application=cif&bean.name=providers:dubbo:com.txz.operating.service.OperatingConfigDubboService&category=providers&check=false&codec=dubbo&default.check=false&default.deprecated=false&default.dynamic=false&default.generic=false&default.lazy=false&default.register=true&default.sticky=false&deprecated=false&dubbo=2.0.2&dynamic=false&generic=false&heartbeat=60000&interface=com.txz.operating.service.OperatingConfigDubboService&lazy=false&methods=getConfigByCode&path=com.txz.operating.service.OperatingConfigDubboService&payload=83886080&pid=77963&protocol=dubbo&qos.accept.foreign.ip=true&qos.enable=false&qos.port=-1®ister=true®ister.ip=169.254.89.253&release=2.7.1&remote.application=operating&remote.timestamp=1752546658673&revision=1.0.0-SNAPSHOT&serialization=kryo&side=consumer&sticky=false×tamp=1752665019069) failed to connect to server /172.17.0.3:20881, error message is:connection timed out: /172.17.0.3:20881 at org.apache.dubbo.remoting.transport.netty4.NettyClient.doConnect(NettyClient.java:131) at org.apache.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:186) at org.apache.dubbo.remoting.transport.AbstractClient.reconnect(AbstractClient.java:242) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeClient.reconnect(HeaderExchangeClient.java:152) at org.apache.dubbo.remoting.exchange.support.header.ReconnectTimerTask.doTask(ReconnectTimerTask.java:49) at org.apache.dubbo.remoting.exchange.support.header.AbstractTimerTask.run(AbstractTimerTask.java:87) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:648) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:727) at org.apache.dubbo.common.timer.HashedWheelTimer$Worker.run(HashedWheelTimer.java:449) at java.lang.Thread.run(Thread.java:750) Caused by: io.netty.channel.ConnectTimeoutException: connection timed out: /172.17.0.3:20881 at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe$1.run(AbstractNioChannel.java:267) at io.netty.util.concurrent.PromiseTask$RunnableAdapter.call(PromiseTask.java:38) at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:127) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:163) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:446) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ... 1 common frames omitted 2025-07-16 19:25:25.914 [RMI TCP Connection(10)-192.168.0.102] ERROR com.zaxxer.hikari.pool.HikariPool - DatebookHikariCP - Exception during pool initialization. com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.Util.getInstance(Util.java:408) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:919) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861) at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2105) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2030) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:778) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330) at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:117) at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:123) at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:365) at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:115) at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) at com.zaxxer.hikari.HikariDataSource$$FastClassBySpringCGLIB$$eeb1ae86.invoke() at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:136) at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:124) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) at com.zaxxer.hikari.HikariDataSource$$EnhancerBySpringCGLIB$$dd7353f.getConnection() at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:324) at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.getProduct(DataSourceHealthIndicator.java:122) at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doDataSourceHealthCheck(DataSourceHealthIndicator.java:109) at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doHealthCheck(DataSourceHealthIndicator.java:104) at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:84) at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:68) at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:47) 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.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:223) at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:61) at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:126) at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:99) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) at sun.reflect.GeneratedMethodAccessor194.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) at sun.rmi.transport.Transport$1.run(Transport.java:200) at sun.rmi.transport.Transport$1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) 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:750) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:342) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2197) at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2046) ... 69 common frames omitted Caused by: java.net.SocketTimeoutException: connect timed out at java.net.PlainSocketImpl.socketConnect(Native Method) 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.SocksSocketImpl.connect(SocksSocketImpl.java:394) at java.net.Socket.connect(Socket.java:606) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:301) ... 71 common frames omitted 2025-07-16 19:25:50.281 [dubbo-client-idleCheck-thread-1] ERROR o.a.d.r.exchange.support.header.ReconnectTimerTask - [DUBBO] Fail to connect to HeaderExchangeClient [channel=org.apache.dubbo.remoting.transport.netty4.NettyClient [169.254.89.253:0 -> /172.17.0.3:20881]], dubbo version: 2.7.1, current host: 169.254.89.253 org.apache.dubbo.remoting.RemotingException: client(url: dubbo://172.17.0.3:20881/com.txz.operating.service.OperatingConfigDubboService?anyhost=true&application=cif&bean.name=providers:dubbo:com.txz.operating.service.OperatingConfigDubboService&category=providers&check=false&codec=dubbo&default.check=false&default.deprecated=false&default.dynamic=false&default.generic=false&default.lazy=false&default.register=true&default.sticky=false&deprecated=false&dubbo=2.0.2&dynamic=false&generic=false&heartbeat=60000&interface=com.txz.operating.service.OperatingConfigDubboService&lazy=false&methods=getConfigByCode&path=com.txz.operating.service.OperatingConfigDubboService&payload=83886080&pid=77963&protocol=dubbo&qos.accept.foreign.ip=true&qos.enable=false&qos.port=-1®ister=true®ister.ip=169.254.89.253&release=2.7.1&remote.application=operating&remote.timestamp=1752546658673&revision=1.0.0-SNAPSHOT&serialization=kryo&side=consumer&sticky=false×tamp=1752665019069) failed to connect to server /172.17.0.3:20881 client-side timeout 3000ms (elapsed: 3008ms) from netty client 169.254.89.253 using dubbo version 2.7.1 at org.apache.dubbo.remoting.transport.netty4.NettyClient.doConnect(NettyClient.java:136) at org.apache.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:186) at org.apache.dubbo.remoting.transport.AbstractClient.reconnect(AbstractClient.java:242) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeClient.reconnect(HeaderExchangeClient.java:152) at org.apache.dubbo.remoting.exchange.support.header.ReconnectTimerTask.doTask(ReconnectTimerTask.java:49) at org.apache.dubbo.remoting.exchange.support.header.AbstractTimerTask.run(AbstractTimerTask.java:87) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:648) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:727) at org.apache.dubbo.common.timer.HashedWheelTimer$Worker.run(HashedWheelTimer.java:449) at java.lang.Thread.run(Thread.java:750) 2025-07-16 19:26:54.271 [dubbo-client-idleCheck-thread-1] ERROR o.a.d.r.exchange.support.header.ReconnectTimerTask - [DUBBO] Fail to connect to HeaderExchangeClient [channel=org.apache.dubbo.remoting.transport.netty4.NettyClient [169.254.89.253:0 -> /172.17.0.3:20881]], dubbo version: 2.7.1, current host: 169.254.89.253 org.apache.dubbo.remoting.RemotingException: client(url: dubbo://172.17.0.3:20881/com.txz.operating.service.OperatingConfigDubboService?anyhost=true&application=cif&bean.name=providers:dubbo:com.txz.operating.service.OperatingConfigDubboService&category=providers&check=false&codec=dubbo&default.check=false&default.deprecated=false&default.dynamic=false&default.generic=false&default.lazy=false&default.register=true&default.sticky=false&deprecated=false&dubbo=2.0.2&dynamic=false&generic=false&heartbeat=60000&interface=com.txz.operating.service.OperatingConfigDubboService&lazy=false&methods=getConfigByCode&path=com.txz.operating.service.OperatingConfigDubboService&payload=83886080&pid=77963&protocol=dubbo&qos.accept.foreign.ip=true&qos.enable=false&qos.port=-1®ister=true®ister.ip=169.254.89.253&release=2.7.1&remote.application=operating&remote.timestamp=1752546658673&revision=1.0.0-SNAPSHOT&serialization=kryo&side=consumer&sticky=false×tamp=1752665019069) failed to connect to server /172.17.0.3:20881 client-side timeout 3000ms (elapsed: 3006ms) from netty client 169.254.89.253 using dubbo version 2.7.1 at org.apache.dubbo.remoting.transport.netty4.NettyClient.doConnect(NettyClient.java:136) at org.apache.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:186) at org.apache.dubbo.remoting.transport.AbstractClient.reconnect(AbstractClient.java:242) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeClient.reconnect(HeaderExchangeClient.java:152) at org.apache.dubbo.remoting.exchange.support.header.ReconnectTimerTask.doTask(ReconnectTimerTask.java:49) at org.apache.dubbo.remoting.exchange.support.header.AbstractTimerTask.run(AbstractTimerTask.java:87) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:648) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:727) at org.apache.dubbo.common.timer.HashedWheelTimer$Worker.run(HashedWheelTimer.java:449) at java.lang.Thread.run(Thread.java:750) 2025-07-16 19:27:58.273 [dubbo-client-idleCheck-thread-1] ERROR o.a.d.r.exchange.support.header.ReconnectTimerTask - [DUBBO] Fail to connect to HeaderExchangeClient [channel=org.apache.dubbo.remoting.transport.netty4.NettyClient [169.254.89.253:0 -> /172.17.0.3:20881]], dubbo version: 2.7.1, current host: 169.254.89.253 org.apache.dubbo.remoting.RemotingException: client(url: dubbo://172.17.0.3:20881/com.txz.operating.service.OperatingConfigDubboService?anyhost=true&application=cif&bean.name=providers:dubbo:com.txz.operating.service.OperatingConfigDubboService&category=providers&check=false&codec=dubbo&default.check=false&default.deprecated=false&default.dynamic=false&default.generic=false&default.lazy=false&default.register=true&default.sticky=false&deprecated=false&dubbo=2.0.2&dynamic=false&generic=false&heartbeat=60000&interface=com.txz.operating.service.OperatingConfigDubboService&lazy=false&methods=getConfigByCode&path=com.txz.operating.service.OperatingConfigDubboService&payload=83886080&pid=77963&protocol=dubbo&qos.accept.foreign.ip=true&qos.enable=false&qos.port=-1®ister=true®ister.ip=169.254.89.253&release=2.7.1&remote.application=operating&remote.timestamp=1752546658673&revision=1.0.0-SNAPSHOT&serialization=kryo&side=consumer&sticky=false×tamp=1752665019069) failed to connect to server /172.17.0.3:20881 client-side timeout 3000ms (elapsed: 3010ms) from netty client 169.254.89.253 using dubbo version 2.7.1 at org.apache.dubbo.remoting.transport.netty4.NettyClient.doConnect(NettyClient.java:136) at org.apache.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:186) at org.apache.dubbo.remoting.transport.AbstractClient.reconnect(AbstractClient.java:242) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeClient.reconnect(HeaderExchangeClient.java:152) at org.apache.dubbo.remoting.exchange.support.header.ReconnectTimerTask.doTask(ReconnectTimerTask.java:49) at org.apache.dubbo.remoting.exchange.support.header.AbstractTimerTask.run(AbstractTimerTask.java:87) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:648) at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:727) at org.apache.dubbo.common.timer.HashedWheelTimer$Worker.run(HashedWheelTimer.java:449) at java.lang.Thread.run(Thread.java:750)