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From "Omkar Vinit Joshi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5413) Killing mapred job in Initial stage leads to java.lang.NullPointerException
Date Wed, 24 Jul 2013 00:24:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5413?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Omkar Vinit Joshi updated MAPREDUCE-5413:
-----------------------------------------

    Attachment:     (was: syslog_MapredKillTask.docx)
    
> Killing mapred job in Initial stage leads to java.lang.NullPointerException
> ---------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5413
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5413
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: yeshavora
>            Assignee: Omkar Vinit Joshi
>
> Run a MR job and kill it as soon as jobId is known. After killing the job, try to kill
its attempts. 
> Steps:
> 1) start a map reduce job
> hadoop jar hadoop-mapreduce-client-jobclient-tests.jar sleep -m 10 -r 10 -mt 50000 -rt
50000
> 2)Kill the job
> hadoop job -kill <job-id>
> 3)Try to kill the attempts for above job.
> Result:
> mapred job was not able to shut down properly. Attaching syslog. It does not kill its
attempts also.
> Above steps leads to below exception,
> org.apache.hadoop.util.ShutdownHookManager: ShutdownHook 'MRAppMasterShutdownHook' failed,
java.lang.NullPointerException
> java.lang.NullPointerException
> 	at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$ContainerAllocatorRouter.setSignalled(MRAppMaster.java:811)
> 	at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$MRAppMasterShutdownHook.run(MRAppMaster.java:1249)
> 	at org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)

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