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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-786) Expose application resource usage in RM REST API
Date Tue, 29 Oct 2013 19:16:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13808327#comment-13808327
] 

Sandy Ryza commented on YARN-786:
---------------------------------

The patch includes changes that make fetching these metrics much less expensive, so I'm no
longer worried about requiring users to explicitly ask for it. Instead of copying all live
containers from the scheduler and summing over them to construct the ApplicationResourceUsageReport,
we push this down into the scheduler, which is already tracking the relevant numbers.

> Expose application resource usage in RM REST API
> ------------------------------------------------
>
>                 Key: YARN-786
>                 URL: https://issues.apache.org/jira/browse/YARN-786
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.0.4-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: YARN-786.patch
>
>
> It might be good to require users to explicitly ask for this information, as it's a little
more expensive to collect than the other fields in AppInfo.



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