[jira] [Commented] (IOTDB-4726) show cluster return with msg: 500 null

[changxue (Jira)]

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https://issues.apache.org/jira/browse/IOTDB-4726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17624106#comment-17624106
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changxue commented on IOTDB-4726:
---------------------------------

[~qiaojialin] 可能不只是show cluster。看上面截图，show storage group 
也有这个问题，那么可能很多sql都会有类似问题。一个个修改是否有些麻烦？所以建议不可用就拒绝连接，这样，sql语句久不用考虑这种情况，无需修改了。
另外，如果开着命令行窗口，iotdb突然不可用，命令行窗口是否应该直接结束？

> show cluster return with msg: 500 null
> --------------------------------------
>
>                 Key: IOTDB-4726
>                 URL: https://issues.apache.org/jira/browse/IOTDB-4726
>             Project: Apache IoTDB
>          Issue Type: Bug
>          Components: Core/Cluster
>    Affects Versions: 0.14.0-SNAPSHOT
>            Reporter: changxue
>            Assignee: 刘俊男
>            Priority: Minor
>         Attachments: image-2022-10-24-11-13-30-723.png, showCluster-logs.txt
>
>
> show cluster return with msg: 500 null
>  
> reproduction:
>  # start 3C3D cluster successfully
>  # execute stop-confignode.sh and stop-datanode.sh on the other 2 nodes(not 
> the leader)
>  # start-cli.sh -h <leader IP>
>  # show cluster 
>  
> !image-2022-10-24-11-13-30-723.png!
>  
> logs see attachment
>  
> 说明：
> 一般来讲，3节点集群，挂掉2个节点就是不可用的。
> 所以这个情况并非不可接受，但是希望将错误提前，比如：在连接时就拒绝连接。



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