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From "Ravi Gummadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5781) ProcessTree can try and kill a "null" POD
Date Fri, 08 May 2009 04:36:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707231#action_12707231
] 

Ravi Gummadi commented on HADOOP-5781:
--------------------------------------

Is this happening with trunk(even after HADOOP-5488) ? Would you please provide the stack
trace ?

> ProcessTree can try and kill a "null" POD
> -----------------------------------------
>
>                 Key: HADOOP-5781
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5781
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.21.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> Saw this in a test run, while trying to shut down a TaskTracker
> [sf-startdaemon-debug] 09/05/07 16:42:42 [Map-events fetcher for all reduce tasks on
tracker_morzine.hpl.hp.com:localhost/127.0.0.1:36239] INFO mapred.TaskTracker : Shutting down:
Map-events fetcher for all reduce tasks on tracker_morzine.hpl.hp.com:localhost/127.0.0.1:36239
> [sf-startdaemon-debug] 09/05/07 16:42:42 [TerminatorThread] WARN util.ProcessTree : Error
executing shell command org.apache.hadoop.util.Shell$ExitCodeException: ERROR: garbage process
ID "-null".

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