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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4741) WARN and ERROR messages logged during normal AM shutdown
Date Wed, 24 Oct 2012 01:00:26 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482881#comment-13482881

Hadoop QA commented on MAPREDUCE-4741:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler 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/2963//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2963//console

This message is automatically generated.
> WARN and ERROR messages logged during normal AM shutdown
> --------------------------------------------------------
>                 Key: MAPREDUCE-4741
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4741
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster, mrv2
>    Affects Versions: 0.23.3, 2.0.1-alpha
>            Reporter: Jason Lowe
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Minor
>         Attachments: MAPREDUCE-4741-20121023.txt
> The ApplicationMaster is logging WARN and ERROR messages during normal shutdown, and
some users are misinterpreting these as serious problems.  For example:
> {noformat}
> 2012-10-02 13:58:50,247 ERROR [ContainerLauncher Event Handler] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl:
Returning, interrupted : java.lang.InterruptedException
> [...]
> 2012-10-02 13:58:50,248 ERROR [Thread-47] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator:
Returning, interrupted : java.lang.InterruptedException
> 2012-10-02 13:58:50,248 WARN [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator:
Allocated thread interrupted. Returning.
> [...]
> 2012-10-02 13:58:50,367 ERROR [TaskCleaner Event Handler] org.apache.hadoop.mapreduce.v2.app.taskclean.TaskCleanerImpl:
Returning, interrupted : java.lang.InterruptedException
> {noformat}
> Warnings or errors should not be logged if everything is working as intended.

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