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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6304) Specifying node labels when submitting MR jobs
Date Tue, 28 Apr 2015 00:36:07 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14516050#comment-14516050
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Naganarasimha G R commented on MAPREDUCE-6304:
----------------------------------------------

Thanks for detailed clarification, got what you intended and was planning to do the same way,
i.e. only if "mapreduce.job.map.node-label-expression" or  "mapreduce.job.reduce.node-label-expression"
config are set then modify the ask in {{RMContainerRequestor}} as yarn takes care of setting
in {{ApplicationMasterService}} when no labels specified in resource request for mapper and
reducer and in {{RMAppManager}} for AM.

> Specifying node labels when submitting MR jobs
> ----------------------------------------------
>
>                 Key: MAPREDUCE-6304
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6304
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Jian Fang
>            Assignee: Naganarasimha G R
>             Fix For: 2.8.0
>
>         Attachments: MAPREDUCE-6304.20150410-1.patch, MAPREDUCE-6304.20150411-1.patch
>
>
> Per the discussion on YARN-796, we need a mechanism in MAPREDUCE to specify node labels
when submitting MR jobs.



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