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From "Ming Ma (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4934) Display Master server and Regionserver start time on respective info servers.
Date Thu, 29 Dec 2011 19:41:30 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177343#comment-13177343
] 

Ming Ma commented on HBASE-4934:
--------------------------------

Jonathan, there is a special case when expired ZK session is recovered by the master. masterActiveTime
is set in finishInitialization which won't be invoked in that scenario. Perhaps moving the
setting of masterActiveTime to becomeActiveMaster method will solve the problem?
                
> Display Master server and Regionserver start time on respective info servers.
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-4934
>                 URL: https://issues.apache.org/jira/browse/HBASE-4934
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.92.0
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>            Priority: Minor
>             Fix For: 0.92.0
>
>         Attachments: hbase-4934.patch, hmaster.png, hregion.png
>
>
> With operations like rolling restart or master failovers, it is difficult to tell if
a server is the "old" instance or the "new" restarted instance.  Adding a start date stamp
on the info web pages would be helpful for determining this.

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