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From "Siqi Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1735) For FairScheduler AvailableMB in QueueMetrics is the same as AllocateMB
Date Tue, 19 May 2015 16:34:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-1735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550728#comment-14550728
] 

Siqi Li commented on YARN-1735:
-------------------------------

Hi [~jianhe], I just rebased the patch, and checkstyle, whitespace and findbugs seem to be
irrelevant.


> For FairScheduler AvailableMB in QueueMetrics is the same as AllocateMB
> -----------------------------------------------------------------------
>
>                 Key: YARN-1735
>                 URL: https://issues.apache.org/jira/browse/YARN-1735
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: Siqi Li
>         Attachments: YARN-1735.v1.patch, YARN-1735.v2.patch, YARN-1735.v3.patch, YARN-1735.v4.patch
>
>
> in monitoring graphs the AvailableMB of each queue regularly spikes between the AllocatedMB
and the entire cluster capacity.
> This cannot be correct since AvailableMB should never be more than the queue max allocation.
The spikes are quite confusing since the availableMB is set as the fair share of each queue
and the fair share of each queue is bond by their allowed max resource.
> Other than the spiking, the availableMB is always equal to allocatedMB. I think this
is not very useful, availableMB for each queue should be their allowed max resource minus
allocatedMB.



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