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https://issues.apache.org/jira/browse/YARN-674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13655661#comment-13655661
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Bikas Saha commented on YARN-674:
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Looks like we might have to resurrect the remaining changes proposed in the
document in YARN-549, namely sending an event to RMAppManager instead of
calling it RMAppManager.submitApplication() directly since that method is no
longer cheap. Any other alternatives?
> 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: Vinod Kumar Vavilapalli
>
> 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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