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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1018) Regionservers should report detailed health to master; master should flag troubled regionservers in UI
Date Sun, 23 Nov 2008 00:53:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12649988#action_12649988
] 

Andrew Purtell commented on HBASE-1018:
---------------------------------------

Agree its easy to set up ganglia but imho its important to have the master know if a regionserver
is sick for a variety of reasons. 

> Regionservers should report detailed health to master; master should flag troubled regionservers
in UI
> ------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-1018
>                 URL: https://issues.apache.org/jira/browse/HBASE-1018
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: master, regionserver
>            Reporter: Andrew Purtell
>             Fix For: 0.19.0
>
>
> Regionservers should report detailed health to master. The master should flag troubled
regionservers in the UI.
> The concern at the moment is primarily heap. Regionservers should report used, committed,
and max heap metrics in the periodic report. The master should flag in the regionserver list
on /master.jsp those regionservers where available heap is below a configurable threshold.


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