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https://issues.apache.org/jira/browse/OOZIE-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13990101#comment-13990101
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Robert Kanter commented on OOZIE-1534:
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And even then, we need to wait until we switch to Hadoop 2.4.0 (see
OOZIE-1729).
For Hadoop 1, which I assume this JIRA is for, this would require some creative
changes.
> 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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