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https://issues.apache.org/jira/browse/HADOOP-1380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12604823#action_12604823
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Amareshwari Sriramadasu commented on HADOOP-1380:
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I think the sub processes created from streaming/pipes tasks (a fork() call
from map) should also be destroyed. But the patch doesnotdo so. It destroys
only the pipes/streaming task, but not the children of it.
> We should have a util.Subprocess class with utilities for starting
> subprocesses
> -------------------------------------------------------------------------------
>
> Key: HADOOP-1380
> URL: https://issues.apache.org/jira/browse/HADOOP-1380
> Project: Hadoop Core
> Issue Type: New Feature
> Components: util
> Reporter: Owen O'Malley
> Assignee: Brice Arnould
> Attachments: SubProcessesManager.patch, SubProcessesManager_v2.patch
>
>
> I'd like a utility class for launching subprocesses. In particular, I want
> there to be a list of launched subprocesses and when the jvm is shutdown, a
> hook will destroy all of the subprocesses. Otherwise, when a task is killed,
> the subprocesses continue on.
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