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https://issues.apache.org/jira/browse/HADOOP-1380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brice Arnould updated HADOOP-1380:
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Attachment: SubProcessesManager_v2.patch
Thanks for your comments ! Here is the patch that include them and kills
processed that may otherwise have been left running by Hadoop.
I'm unsure however about what you mean by "Otherwise it is impossible to tell
them to stop."
reliablyWaitManaged() will wait for the process to be destroyed, but that
process can still be stopped by other ways (by the cleaner, by the user or by
completing). This function serve only to wait for the process, so we can remove
the hook if the process ends before the Runtime.
> 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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