leleplus opened a new issue, #7101: URL: https://github.com/apache/rocketmq/issues/7101
### Before Creating the Bug Report - [X] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions). - [X] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate. - [X] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ. ### Runtime platform environment docker ### RocketMQ version 4.3.0 ### JDK Version jdk 1.8 ### Describe the Bug In the online environment, this log is printed very frequently, but it does not affect our normal use ```java 2023-08-01 15:53:58.915 ERROR [ScheduledThread] [N/A] RocketmqRemoting#error:155 : createChannel: create channel exception java.lang.ArrayIndexOutOfBoundsException: 1 at org.apache.rocketmq.remoting.common.RemotingHelper.string2SocketAddress(RemotingHelper.java:57) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.createChannel(NettyRemotingClient.java:485) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.getAndCreateNameserverChannel(NettyRemotingClient.java:439) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.getAndCreateChannel(NettyRemotingClient.java:399) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:364) at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1212) at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1202) at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:605) at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:492) at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:361) at org.apache.rocketmq.client.impl.factory.MQClientInstance$3.run(MQClientInstance.java:278) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) 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) 2023-08-01 15:53:58.923 ERROR [ScheduledThread] [N/A] RocketmqRemoting#error:155 : createChannel: create channel exception java.lang.ArrayIndexOutOfBoundsException: 1 at org.apache.rocketmq.remoting.common.RemotingHelper.string2SocketAddress(RemotingHelper.java:57) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.createChannel(NettyRemotingClient.java:485) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.getAndCreateNameserverChannel(NettyRemotingClient.java:439) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.getAndCreateChannel(NettyRemotingClient.java:399) at org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:364) at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1212) at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1202) at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:605) at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:492) at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:361) at org.apache.rocketmq.client.impl.factory.MQClientInstance$3.run(MQClientInstance.java:278) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ``` ### Steps to Reproduce It just happened naturally, I didn't do anything ### What Did You Expect to See? Hope to solve this problem or can tell me the way to solve this error ### What Did You See Instead? I checked through the command line arthas tool and found that the calling line parameters are as follows ```java [arthas@1]$ watch org.apache.rocketmq.remoting.common.RemotingHelper string2SocketAddress "{params}" -x 2 -e Press Q or Ctrl+C to abort. Affect(class count: 1 , method count: 1) cost in 361 ms, listenerId: 1 method=org.apache.rocketmq.remoting.common.RemotingHelper.string2SocketAddress location=AtExceptionExitmethod=org.apache.rocketmq.remoting.common.RemotingHelper.string2SocketAddress location=AtExceptionExit ts=2023-08-01 16:03:37; [cost=0.078843ms] result=@ArrayList[ts=2023-08-01 16:03:37; [cost=1.327615ms] result=@ArrayList[ @Object[][ @Object[][ @String[null], @String[null], ], ],] ] method=org.apache.rocketmq.remoting.common.RemotingHelper.string2SocketAddress location=AtExceptionExit ts=2023-08-01 16:03:40; [cost=0.094959ms] result=@ArrayList[ @Object[][ @String[null], ], ] method=org.apache.rocketmq.remoting.common.RemotingHelper.string2SocketAddress location=AtExceptionExit ts=2023-08-01 16:03:40; [cost=0.078543ms] result=@ArrayList[ @Object[][ @String[null], ], ] ``` The call is traced up as follows ```java [arthas@1]$ watch org.apache.rocketmq.client.impl.MQClientAPIImpl getTopicRouteInfoFromNameServer "{params}" -x 2 -e Press Q or Ctrl+C to abort. Affect(class count: 1 , method count: 2) cost in 409 ms, listenerId: 2 method=org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer location=AtExceptionExit ts=2023-08-01 16:06:04; [cost=0.838545ms] result=@ArrayList[ @Object[][ @String[TBW102], @Long[3000], @Boolean[true], ], ] method=org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer location=AtExceptionExit ts=2023-08-01 16:06:04; [cost=3.419284ms] result=@ArrayList[ @Object[][ @String[TBW102], @Long[3000], ], ] method=org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer location=AtExceptionExit ts=2023-08-01 16:06:04; [cost=0.223639ms] result=@ArrayList[ @Object[][ @String[TBW102], @Long[3000], @Boolean[true], ], ] ``` Hope this information is helpful to you ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. 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