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https://issues.apache.org/jira/browse/YARN-3554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14527072#comment-14527072
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Vinod Kumar Vavilapalli commented on YARN-3554:
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HADOOP-11398 and YARN-3238 relevant in that they caused AM->NM communication 
take a long time to timeout.

> Default value for maximum nodemanager connect wait time is too high
> -------------------------------------------------------------------
>
>                 Key: YARN-3554
>                 URL: https://issues.apache.org/jira/browse/YARN-3554
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Naganarasimha G R
>              Labels: newbie
>         Attachments: YARN-3554-20150429-2.patch, YARN-3554.20150429-1.patch
>
>
> The default value for yarn.client.nodemanager-connect.max-wait-ms is 900000 
> msec or 15 minutes, which is way too high.  The default container expiry time 
> from the RM and the default task timeout in MapReduce are both only 10 
> minutes.



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