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https://issues.apache.org/jira/browse/YARN-4354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15004503#comment-15004503
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Varun Saxena commented on YARN-4354:
------------------------------------

Makes sense. Better to be safe and have an explicit null check in addition to 
check for public resource.
We can print a log message if rsrc is not found. 

> Public resource localization fails with NPE
> -------------------------------------------
>
>                 Key: YARN-4354
>                 URL: https://issues.apache.org/jira/browse/YARN-4354
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.2
>            Reporter: Jason Lowe
>            Priority: Blocker
>         Attachments: YARN-4354-unittest.patch
>
>
> I saw public localization on nodemanagers get stuck because it was constantly 
> rejecting requests to the thread pool executor.



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