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https://issues.apache.org/jira/browse/YARN-579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13641315#comment-13641315
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Bikas Saha commented on YARN-579:
---------------------------------

appToken is attempt specific. So it needs to be store per app attempt. So it 
needs to be generated when app attempt is assigned a container and saved in 
appAttemptStateData. Basically the code needs to be moved from AMLauncher to 
the rmappattempimpl. AMLauncher will simply use the token from the attempt.
                
> Make ApplicationToken part of Container's token list to help RM-restart
> -----------------------------------------------------------------------
>
>                 Key: YARN-579
>                 URL: https://issues.apache.org/jira/browse/YARN-579
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 2.0.4-alpha
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-579-20130422.1.txt, 
> YARN-579-20130422.1_YARNChanges.txt
>
>
> Container is already persisted for helping RM restart. Instead of explicitly 
> setting ApplicationToken in AM's env, if we change it to be in Container, we 
> can avoid env and can also help restart.

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