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https://issues.apache.org/jira/browse/YARN-581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13639638#comment-13639638
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Jian He commented on YARN-581:
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bq. I remember we discussed this on some other ticket too? Why not stop RM1
before starting RM2 in the test-case?
Because its incorrect to stop rm1 first. If rm1.stop(), the store dispatcher is
stopped, its not able to process remove event any more, app1 still remain. I
also comment this on YARN-594
> Test and verify that app delegation tokens are restored after RM restart
> ------------------------------------------------------------------------
>
> Key: YARN-581
> URL: https://issues.apache.org/jira/browse/YARN-581
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Bikas Saha
> Assignee: Jian He
> Attachments: YARN-581.1.patch
>
>
> The code already saves the delegation tokens in AppSubmissionContext. Upon
> restart the AppSubmissionContext is used to submit the application again and
> so restores the delegation tokens. This jira tracks testing and verifying
> this functionality in a secure setup.
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