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https://issues.apache.org/jira/browse/HBASE-14517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14947990#comment-14947990
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Liu Shaohui commented on HBASE-14517:
-------------------------------------
[~stack]
{quote}
Why you move the VersionInfo from RPC to HBase protos?
{quote}
Because RPC.proto has depended on HBase.proto and there will be a cycle
dependency if the VersionInfo is put in RPC.proto.
> Show regionserver's version in master status page
> -------------------------------------------------
>
> Key: HBASE-14517
> URL: https://issues.apache.org/jira/browse/HBASE-14517
> Project: HBase
> Issue Type: Improvement
> Components: monitoring
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-14517-v1.diff
>
>
> In production env, regionservers may be removed from the cluster for hardware
> problems and rejoined the cluster after the repair. There is a potential risk
> that the version of rejoined regionserver may diff from others because the
> cluster has been upgraded through many versions.
> To solve this, we can show the all regionservers' version in the server list
> of master's status page, and highlight the regionserver when its version is
> different from the master's version, similar to HDFS-3245
> Suggestions are welcome~
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