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Date: Thu, 27 Oct 2011 21:00:32 +0000 (UTC)
From: "Eric Payne (Commented) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-3186) User jobs are getting hanged if
 the Resource manager process goes down and comes up while job is getting
 executed.
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13137537#comment-13137537 ] 

Eric Payne commented on MAPREDUCE-3186:
---------------------------------------

The findbugs warnings are not related. None of them are in methods changed by this jira.

Also, just to be sure, I created a dummy patch (whitespace changes to 1 file) and ran {{bash ../dev-support/test-patch.sh ../../foo}} in branch-0.23/hadoop-mapred-project. This generated a lot of findbugs warnings.

Then I ran {{bash ../dev-support/test-patch.sh ../../MAPREDUCE-3186.v2.txt}} against the real patch. This also generated the same warnings as before with no new ones.
                
> User jobs are getting hanged if the Resource manager process goes down and comes up while job is getting executed.
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3186
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3186
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>         Environment: linux
>            Reporter: Ramgopal N
>            Assignee: Eric Payne
>            Priority: Blocker
>              Labels: test
>         Attachments: MAPREDUCE-3186.v1.txt, MAPREDUCE-3186.v2.txt
>
>
> If the resource manager is restarted while the job execution is in progress, the job is getting hanged.
> UI shows the job as running.
> In the RM log, it is throwing an error "ERROR org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService: AppAttemptId doesnt exist in cache appattempt_1318579738195_0004_000001"
> In the console MRAppMaster and Runjar processes are not getting killed

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