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https://issues.apache.org/jira/browse/TEZ-1631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154130#comment-14154130
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Bikas Saha edited comment on TEZ-1631 at 10/1/14 12:52 AM:
-----------------------------------------------------------
Attaching patch with minor changes to fix typo in name and add
tezSession.stop() in the test.
was (Author: bikassaha):
Attaching patch with minor changes.
> Session dag submission timeout can result in duplicate DAG submissions
> ----------------------------------------------------------------------
>
> Key: TEZ-1631
> URL: https://issues.apache.org/jira/browse/TEZ-1631
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.4.1
> Reporter: Bikas Saha
> Assignee: Jeff Zhang
> Attachments: TEZ-1631.5.patch, Tez-1631-2.patch, Tez-1631-3.patch,
> Tez-1631-4.patch, Tez-1631.patch
>
>
> In TezSession.submitDAG() we could first check if the session is ready and
> throw a SessionNotRunning exception if that is not the case. This should be
> done before processing the DAG and thus will prevent unnecessary modification
> of the DAG.
> If the session is ready then we can submit the DAG as usual. Higher level
> components already handle SessionNotRunning exception.
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