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https://issues.apache.org/jira/browse/MAPREDUCE-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538405#comment-13538405
 ] 

Hadoop QA commented on MAPREDUCE-4833:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12562133/MAPREDUCE4833-1.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new 
or modified test files.

      {color:red}-1 javac{color}.  The applied patch generated 2016 javac 
compiler warnings (more than the trunk's current 2015 warnings).

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any 
warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with 
eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3159//testReport/
Javac warnings: 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3159//artifact/trunk/patchprocess/diffJavacWarnings.txt
Console output: 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3159//console

This message is automatically generated.
                
> Task can get stuck in FAIL_CONTAINER_CLEANUP
> --------------------------------------------
>
>                 Key: MAPREDUCE-4833
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4833
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster, mrv2
>    Affects Versions: 0.23.5
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Parker
>            Priority: Critical
>         Attachments: MAPREDUCE4833-1.patch, MAPREDUCE4833.patch
>
>
> If an NM goes down and the AM still tries to launch a container on it the 
> ContainerLauncherImpl can get stuck in an RPC timeout.  At the same time the 
> RM may notice that the NM has gone away and inform the AM of this, this 
> triggers a TA_FAILMSG.  If the TA_FAILMSG arrives at the TaskAttemptImpl 
> before the TA_CONTAINER_LAUNCH_FAILED message then the task attempt will try 
> to kill the container, but the ContainerLauncherImpl will not send back a 
> TA_CONTAINER_CLEANED event causing the attempt to be stuck.

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