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From "Mahadev konar (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3703) ResourceManager should provide node lists in JMX output
Date Fri, 27 Jan 2012 03:55:40 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194418#comment-13194418

Mahadev konar commented on MAPREDUCE-3703:

Actually now that I think of it, we never had anything exposed via jmx for the RM? Looks like
this is the first bean we are adding. Is that right? I thought some of the work that Thomas
did on web services was also exposed via jmx. No? 
> ResourceManager should provide node lists in JMX output
> -------------------------------------------------------
>                 Key: MAPREDUCE-3703
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3703
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 0.23.1
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>            Priority: Critical
>         Attachments: MAPREDUCE-3703.1.txt
> In 0.20.*, the JMX UI for the JobTracker (http://<JobTrackerHost>:50030/jmx) showed
lists of Live and BlackListed Nodes under the JobTrackerInfo section.
> In 0.23, the ResourceManager JMX UI shows the number of active, decommissioned, lost,
unhealthy, and rebooted nodes under the ClusterMetrics section, but does not give the list
of nodes.
> At least the list of active nodes is needed in JSON format.

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