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https://issues.apache.org/jira/browse/TEZ-1376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104847#comment-14104847
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Chen He commented on TEZ-1376:
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I think we are worrying about the same thing. Same output directory for
concurrent DAGs are not our concern. I will test the following scenario: two
different DAGs are sharing their staging dir.
> Support independent parallel DAGs execution in Local Mode
> ---------------------------------------------------------
>
> Key: TEZ-1376
> URL: https://issues.apache.org/jira/browse/TEZ-1376
> Project: Apache Tez
> Issue Type: Sub-task
> Affects Versions: 0.4.1
> Reporter: Chen He
> Attachments: simpleTestCase.patch
>
>
> Pig on Tez allows user to submit parallel DAGs in a single pig script. Those
> DAGs could be independent and concurrent. Current LocalMode may encounter
> some problems when concurrent parallel DAGs are submitted.
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