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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8471) YARN RM hangs and stops allocating resources when applications successively running
Date Sat, 30 Jun 2018 04:58:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16528545#comment-16528545
] 

Wangda Tan commented on YARN-8471:
----------------------------------

[~jutia], if this is mostly same as YARN-8193, could u reopen YARN-8193 and attach patch to
there? cc: [~elgoiri]

> YARN RM hangs and stops allocating resources when applications successively running
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-8471
>                 URL: https://issues.apache.org/jira/browse/YARN-8471
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 2.9.0
>            Reporter: tianjuan
>            Assignee: tianjuan
>            Priority: Major
>             Fix For: 2.9.0
>
>         Attachments: YARN-8471-branch-2.9.0-001.patch, YARN-8471.001.patch
>
>
> At some point RM just hangs and stops allocating resources. At the point RM get hangs,
YARN throws NullPointerException at RegularContainerAllocator#allocate, and RegularContainerAllocator#preCheckForPlacementSet,
and RegularContainerAllocator#getLocalityWaitFactor.



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