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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2997) MR task fails before launch itself with an NPE in ContainerLauncher
Date Tue, 13 Sep 2011 18:17:11 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-2997:
-------------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

+1, hard to write a unit test for.

I just committed this. Thanks Vinod!

> MR task fails before launch itself with an NPE in ContainerLauncher
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2997
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2997
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2997-20110913.txt
>
>
> Exception found on the AM web UI while the application is running:
> {code}
> Container launch failed for container_1315908079531_0002_01_000387 : java.lang.NullPointerException
>   at org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl.getCMProxy(ContainerLauncherImpl.java:162)
>   at org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl$EventProcessor.run(ContainerLauncherImpl.java:204)
>   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>   at java.lang.Thread.run(Thread.java:619) 
> {code}

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