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https://issues.apache.org/jira/browse/YARN-514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629745#comment-13629745
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Bikas Saha commented on YARN-514:
---------------------------------

For MAPREDUCE-5140 please check for uses of both NEW and SUBMITTED in order to 
find out places where NEW_SAVING would need to be handled.
                
> Delayed store operations should not result in RM unavailability for app 
> submission
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-514
>                 URL: https://issues.apache.org/jira/browse/YARN-514
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Zhijie Shen
>         Attachments: YARN-514.1.patch, YARN-514.2.patch, YARN-514.3.patch
>
>
> Currently, app submission is the only store operation performed synchronously 
> because the app must be stored before the request returns with success. This 
> makes the RM susceptible to blocking all client threads on slow store 
> operations, resulting in RM being perceived as unavailable by clients.

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