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https://issues.apache.org/jira/browse/MAPREDUCE-5593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13820906#comment-13820906
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Junping Du commented on MAPREDUCE-5593:
---------------------------------------
The test failure seems to be unrelated with the patch (also failed on clean
trunk branch in my local env) and may caused by MAPREDUCE-5427. Will do more
investigation soon.
> Cleanup code for AssignMapsWithLocality() in RMContainerAllocator
> -----------------------------------------------------------------
>
> Key: MAPREDUCE-5593
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5593
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: applicationmaster
> Reporter: Junping Du
> Assignee: Junping Du
> Priority: Minor
> Attachments: MAPREDUCE-5593-v3.patch, MAPREDUCE-5593-v4.patch,
> YARN-1163-v1.patch, YARN-1163-v2.patch
>
>
> In RMContainerAllocator, AssignMapsWithLocality() is a very important method
> to assign map tasks on allocated containers with conforming different level
> of locality (dataLocal, rackLocal, etc.). However, this method messed with
> different code logic to handle different type of locality but have lots of
> similar behaviours. This is hard to maintain as well as do extension with
> other locality type, so we need some more clear code here.
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