Varun Saxena reassigned YARN-4355:

    Assignee: Varun Saxena

> 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
> 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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