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https://issues.apache.org/jira/browse/MAPREDUCE-2652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067183#comment-13067183
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Robert Joseph Evans commented on MAPREDUCE-2652:
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I am requesting that someone please review this patch Thanks.
> MR-279: Cannot run multiple NMs on a single node
> -------------------------------------------------
>
> Key: MAPREDUCE-2652
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2652
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Fix For: 0.23.0
>
> Attachments: MR-2652-v1.txt, MR-2652-v2.txt
>
>
> Currently in MR-279 the Auxiliary services, like ShuffleHandler, have no way
> to communicate information back to the applications. Because of this the Map
> Reduce Application Master has hardcoded in a port of 8080 for shuffle. This
> prevents the configuration "mapreduce.shuffle.port" form ever being set to
> anything but 8080. The code should be updated to allow this information to
> be returned to the application master. Also the data needs to be persisted
> to the task log so that on restart the data is not lost.
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