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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-674) Slow or failing DelegationToken renewals on submission itself make RM unavailable
Date Sat, 26 Oct 2013 23:13:31 GMT

    [ https://issues.apache.org/jira/browse/YARN-674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13806183#comment-13806183
] 

Jian He commented on YARN-674:
------------------------------

DelegationTokenRenewer.applicationFinished() is anyways canceling the token on a separate
thread, do we need to funnel through the dispatcher as well ?
It would be to have an end-to-end test that application submitted with an Invalid token will
be rejected and verify yarn client can get Failed application status using MockRM.


> Slow or failing DelegationToken renewals on submission itself make RM unavailable
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-674
>                 URL: https://issues.apache.org/jira/browse/YARN-674
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Omkar Vinit Joshi
>         Attachments: YARN-674.1.patch, YARN-674.2.patch
>
>
> This was caused by YARN-280. A slow or a down NameNode for will make it look like RM
is unavailable as it may run out of RPC handlers due to blocked client submissions.



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