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https://issues.apache.org/jira/browse/OOZIE-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13988447#comment-13988447
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Bowen Zhang commented on OOZIE-1534:
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[~rkanter], is it still valid? Is it done already?
> Launcher job might run do hadoop attempt relaunch - possibly causing
> correctness issues
> ---------------------------------------------------------------------------------------
>
> Key: OOZIE-1534
> URL: https://issues.apache.org/jira/browse/OOZIE-1534
> Project: Oozie
> Issue Type: Improvement
> Reporter: Srikanth Sundarrajan
>
> The <prepare> section of the action allow to clean up the output dir. This is
> not sufficient as MR jobs started by Pig/Hive may be still running.We should
> look to kill child MR jobs if any before launching new ones.
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