[jira] [Reopened] (TEZ-1433) Invalid credentials can be used when a DAG is submitted to a session which has timed out

["Bikas Saha (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TEZ-1433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bikas Saha reopened TEZ-1433:
-----------------------------

> Invalid credentials can be used when a DAG is submitted to a session which has timed out
> ----------------------------------------------------------------------------------------
>
>                 Key: TEZ-1433
>                 URL: https://issues.apache.org/jira/browse/TEZ-1433
>             Project: Apache Tez
>          Issue Type: Bug
>    Affects Versions: 0.4.0
>            Reporter: Siddharth Seth
>            Assignee: Bikas Saha
>            Priority: Blocker
>             Fix For: 0.5.1
>
>         Attachments: TEZ-1433-v1.patch, TEZ-1433.2.patch, TEZ-1433.3.patch, TEZ-1433.4.patch, TEZ-1433.5.patch
>
>
> When a DAG is submitted to a session which has timed out, and the same DAG is then submitted to a new session - credentials associated with the old session can end up getting used.
> Before we know that the session is no longer valid, the DAG is modified to add local resources and credentials.
> On the next submission, since the DAG already has tokens (for HDFS for example) from the old session, the tokens are not updated.
> Meanwhile, the old token would end up being cancelled by the RM - since the applicaiton associated with the previous session has finished.



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