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From "Luke Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4944) Backport YARN-40 to support listClusterNodes and printNodeStatus in command line tool
Date Mon, 01 Apr 2013 09:21:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618708#comment-13618708
] 

Luke Lu commented on MAPREDUCE-4944:
------------------------------------

We don't need to use JMX-RMI directly, rather a JMX REST API. Either /jmx or /jolokia (after
HADOOP-9160) would work with regular http port from the configs. The legacy /jmx already have
these information.
                
> Backport YARN-40 to support listClusterNodes and printNodeStatus in command line tool
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4944
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4944
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>    Affects Versions: 1.1.1
>            Reporter: Binglin Chang
>            Priority: Minor
>
>  support listClusterNodes and printNodeStatus in command line tool is useful for admin
to create certain automation tools, this can also used by MAPREDUCE-4900 to get TaskTracker
name so can set TT's slot dynamically

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