GitHub user RongtongJin added a comment to the discussion: controller通知broker变更
> broker监听端口是10911，然后服务都是正常了，日志都没有报错。但是在controller通知broker变更角色的时候，提示这个错误。可以帮忙看下是什么原因吗？ > > `2023-06-07 18:01:44 ERROR ControllerManager_NotifyService_2 - Failed to > notify broker 192.168.105.104:10911 that role changed > org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to > failed at > org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeOneway(NettyRemotingClient.java:759) > at > org.apache.rocketmq.controller.ControllerManager.doNotifyBrokerRoleChanged(ControllerManager.java:210) > at > org.apache.rocketmq.controller.ControllerManager$NotifyService.lambda$notifyBroker$0(ControllerManager.java:302) > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) 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)` 看是controller没有连接上broker。这个到不会有太大影响，角色变更会依赖2点来保证：1. controller反向通知broker 2.broker定时会向controller同步元数据信息。即使1失败了，2仍然会起作用。保证角色变更完成 GitHub link: https://github.com/apache/rocketmq/discussions/6869#discussioncomment-6110285 ---- This is an automatically sent email for dev@rocketmq.apache.org. To unsubscribe, please send an email to: dev-unsubscr...@rocketmq.apache.org
