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https://issues.apache.org/jira/browse/MAPREDUCE-5413?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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yeshavora updated MAPREDUCE-5413:
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Attachment: syslog_MapredKillTask(1).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
> Attachments: syslog_MapredKillTask(1).docx
>
>
> 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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