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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4741) WARN and ERROR messages logged during normal AM shutdown
Date Wed, 24 Oct 2012 15:52:13 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated MAPREDUCE-4741:
----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.23.5
                   2.0.3-alpha
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Thanks, Vinod.  I committed this to trunk, branch-2, and branch-0.23.
                
> 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
>             Fix For: 2.0.3-alpha, 0.23.5
>
>         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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