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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-514) Delayed store operations should not result in RM unavailability for app submission
Date Fri, 12 Apr 2013 03:45:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629742#comment-13629742
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Bikas Saha commented on YARN-514:
---------------------------------

Looks good overall. Minor tab issues in the patch.

I dont think we want to change the enum values in the proto.

Please prepare a MAPREDUCE side patch for MAPREDUCE-5140. These need to go in together.
                
> 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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