mqadmin updateTopic -b localhost:10911 -n localhost:9876 -r 8 -t tp_demo_01 -w 8
RocketMQLog:WARN No appenders could be found for logger (io.netty.util.internal.InternalThreadLocalMap).
RocketMQLog:WARN Please initialize the logger system properly.
org.apache.rocketmq.tools.command.SubCommandException: UpdateTopicSubCommand command failed
at org.apache.rocketmq.tools.command.topic.UpdateTopicSubCommand.execute(UpdateTopicSubCommand.java:185)
at org.apache.rocketmq.tools.command.MQAdminStartup.main0(MQAdminStartup.java:146)
at org.apache.rocketmq.tools.command.MQAdminStartup.main(MQAdminStartup.java:97)
Caused by: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to localhost:10911 failed
at org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:407)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.createTopic(MQClientAPIImpl.java:288)
at org.apache.rocketmq.tools.admin.DefaultMQAdminExtImpl.createAndUpdateTopicConfig(DefaultMQAdminExtImpl.java:200)
at org.apache.rocketmq.tools.admin.DefaultMQAdminExt.createAndUpdateTopicConfig(DefaultMQAdminExt.java:169)
at org.apache.rocketmq.tools.command.topic.UpdateTopicSubCommand.execute(UpdateTopicSubCommand.java:139)
... 2 more
老师启动报这个错怎么回事