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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4355) NPE while processing localizer heartbeat
Date Tue, 15 Nov 2016 13:11:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-4355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15667103#comment-15667103
] 

Varun Saxena commented on YARN-4355:
------------------------------------

Thanks [~Naganarasimha] for the commit.
Thanks [~jhung] for the rebase. And thanks [~templedf] and [~jlowe] for reviews.

> NPE while processing localizer heartbeat
> ----------------------------------------
>
>                 Key: YARN-4355
>                 URL: https://issues.apache.org/jira/browse/YARN-4355
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.2
>            Reporter: Jason Lowe
>            Assignee: Varun Saxena
>             Fix For: 2.8.0, 2.9.0, 2.7.4, 3.0.0-alpha2
>
>         Attachments: YARN-4355-branch-2.7.001.patch, YARN-4355-branch-2.7.002.patch,
YARN-4355.01.patch, YARN-4355.02.patch, YARN-4355.03.patch, YARN-4355.04.patch, YARN-4355.05.patch
>
>
> While analyzing YARN-4354 I noticed a nodemanager was getting NPEs while processing a
private localizer heartbeat.  I think there's a race where we can cleanup resources for an
application and therefore remove the app local resource tracker just as we are trying to handle
the localizer heartbeat.



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