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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2868) Add metric for initial container launch time to FairScheduler
Date Fri, 23 Jan 2015 19:54:37 GMT

    [ https://issues.apache.org/jira/browse/YARN-2868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14289835#comment-14289835
] 

Ray Chiang commented on YARN-2868:
----------------------------------

[~rohithsharma], it looks like CapacityScheduler/AbstractYarnScheduler is missing a couple
of things needed to record container launch time.  The Clock stuff is easy to add, but the
queue related stuff looks like it could get complicated.  I think I'd rather wait for YARN-2986
before this JIRA is implemented in CapacityScheduler.  I can open a new JIRA for that once
this one is done.

Does that sound reasonable?

> Add metric for initial container launch time to FairScheduler
> -------------------------------------------------------------
>
>                 Key: YARN-2868
>                 URL: https://issues.apache.org/jira/browse/YARN-2868
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Ray Chiang
>            Assignee: Ray Chiang
>              Labels: metrics, supportability
>         Attachments: YARN-2868-01.patch, YARN-2868.002.patch, YARN-2868.003.patch, YARN-2868.004.patch,
YARN-2868.005.patch, YARN-2868.006.patch
>
>
> Add a metric to measure the latency between "starting container allocation" and "first
container actually allocated".



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