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https://issues.apache.org/jira/browse/HADOOP-5488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681711#action_12681711
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Vinod K V commented on HADOOP-5488:
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HADOOP-2721 incorporated changes to clean up descendant processes only in the
code path of killing of a task. And when a jvm that successfully ran a task
exits, the pidfile gets removed and so even if a KillTaskAction is subsequently
received, descendants will not be cleaned up for the lack of the root pid.
> HADOOP-2721 doesn't clean up descendant processes of a jvm that exits cleanly
> after running a task successfully
> ---------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-5488
> URL: https://issues.apache.org/jira/browse/HADOOP-5488
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Vinod K V
>
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