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https://issues.apache.org/jira/browse/YARN-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13962528#comment-13962528
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Hong Zhiguo commented on YARN-1872:
-----------------------------------

I suggest to take this patch since it makes DistributedShell more robust 
regardless of AMRMClient accuracy.
And it realy fixes this failure.

In MapReduce V2 AM, there's similar logic to be tolerance of extra allocation.

> TestDistributedShell occasionally fails in trunk
> ------------------------------------------------
>
>                 Key: YARN-1872
>                 URL: https://issues.apache.org/jira/browse/YARN-1872
>             Project: Hadoop YARN
>          Issue Type: Test
>            Reporter: Ted Yu
>            Assignee: Hong Zhiguo
>            Priority: Blocker
>         Attachments: TestDistributedShell.out, YARN-1872.patch
>
>
> From https://builds.apache.org/job/Hadoop-Yarn-trunk/520/console :
> TestDistributedShell#testDSShellWithCustomLogPropertyFile failed and 
> TestDistributedShell#testDSShell timed out.



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