[ https://issues.apache.org/jira/browse/TEZ-1631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bikas Saha updated TEZ-1631:
----------------------------
Fix Version/s: (was: 0.4.2)
> 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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