lgd8069465 edited a comment on issue #3275:
URL: https://github.com/apache/rocketmq/issues/3275#issuecomment-901674154


   > > > > https://github.com/apache/rocketmq/blob/master/docs/cn/operation.md
   > > > > 
如上启动命令是在单个NameServer情况下使用的。对于多个NameServer的集群,Broker启动命令中-n后面的地址列表用分号隔开即可,例如 
192.168.1.1:9876;192.161.2:9876。
   > > > > ```shell
   > > > > [root@docker ~]# sh /opt/rocketmq-all-4.9.0-bin-release/bin/mqadmin 
clusterList -n 
192.168.2.184:9876;192.168.2.15:9876;192.168.2.217:9876;192.168.2.222:9876
   > > > > RocketMQLog:WARN No appenders could be found for logger 
(io.netty.util.internal.PlatformDependent0).
   > > > > RocketMQLog:WARN Please initialize the logger system properly.
   > > > > #Cluster Name     #Broker Name            #BID  #Addr                
  #Version                #InTPS(LOAD)       #OutTPS(LOAD) #PCWait(ms) #Hour 
#SPACE
   > > > > DefaultCluster    broker-a                0     192.168.2.184:10911  
  V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.70 
0.9079
   > > > > DefaultCluster    broker-a                1     192.168.2.217:10911  
  V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.70 
0.9595
   > > > > DefaultCluster    broker-b                0     192.168.2.15:10911   
  V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.70 
-1.0000
   > > > > DefaultCluster    broker-b                1     192.168.2.222:10911  
  V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.70 
0.1785
   > > > > -bash: 192.168.2.15:9876: command not found
   > > > > -bash: 192.168.2.217:9876: command not found
   > > > > -bash: 192.168.2.222:9876: command not found
   > > > > [root@docker ~]#
   > > > > ```
   > > > > 
   > > > > 
   > > > >     
   > > > >       
   > > > >     
   > > > > 
   > > > >       
   > > > >     
   > > > > 
   > > > >     
   > > > >   
   > > > > command not found ?
   > > > 
   > > > 
   > > > admin tools 指定一个nameserver 就可以了,不同nameserver 的元数据是一致的,上面多个nameserver 
拼接常用于producer,nameserver
   > > 
   > > 
   > > 一个nameserver宕机了是不是代表全完了?
   > 
   > 不会的,ns 是无状态的且有全量数据的,会使用活着的继续提供服务。
   
   ``` bash
   [root@docker opt]# nohup sh /opt/rocketmq-all-4.9.0-bin-release/bin/mqbroker 
-n 192.168.2.184:9876;192.168.2.15:9876;192.168.2.217:9876;192.168.2.222:9876 
-c /opt/rocketmq-all-4.9.0-bin-release/conf/2m-2s-sync/broker-a.properties &
   nohup: ignoring input and appending output to ‘nohup.out’
   
   [root@docker ~]# sh /opt/rocketmq-all-4.9.0-bin-release/bin/mqadmin 
clusterList -n 192.168.2.184:9876
   RocketMQLog:WARN No appenders could be found for logger 
(io.netty.util.internal.PlatformDependent0).
   RocketMQLog:WARN Please initialize the logger system properly.
   #Cluster Name     #Broker Name            #BID  #Addr                  
#Version                #InTPS(LOAD)       #OutTPS(LOAD) #PCWait(ms) #Hour 
#SPACE
   DefaultCluster    deploy                  0     192.168.2.222:10911    
V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.82 
0.1785
   DefaultCluster    docker                  0     192.168.2.184:10911    
V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.82 
0.9083
   DefaultCluster    kibana                  0     192.168.2.15:10911     
V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.82 
-1.0000
   DefaultCluster    kubernetes              0     192.168.2.217:10911    
V4_9_0                   0.00(0,0ms)         0.00(0,0ms)          0 452594.82 
0.9595
   [root@docker ~]#
   [root@docker ~]# sh /opt/rocketmq-all-4.9.0-bin-release/bin/mqadmin 
clusterList -n 192.168.2.15:9876
   RocketMQLog:WARN No appenders could be found for logger 
(io.netty.util.internal.PlatformDependent0).
   RocketMQLog:WARN Please initialize the logger system properly.
   #Cluster Name     #Broker Name            #BID  #Addr                  
#Version                #InTPS(LOAD)       #OutTPS(LOAD) #PCWait(ms) #Hour 
#SPACE
   [root@docker ~]#
   ```
   NameServer只有184有信息,Broker Name也不对,-n 参数多ip不支持?NameServer没有类似zookeeper的集群模式?
   @duhenglucky 


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