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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3733) DominantRC#compare() does not work as expected if cluster resource is empty
Date Wed, 03 Jun 2015 21:15:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-3733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14571658#comment-14571658
] 

Wangda Tan commented on YARN-3733:
----------------------------------

Patch LGTM generally, will commit the patch once [~sunilg] +1.

> DominantRC#compare() does not work as expected if cluster resource is empty
> ---------------------------------------------------------------------------
>
>                 Key: YARN-3733
>                 URL: https://issues.apache.org/jira/browse/YARN-3733
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.0
>         Environment: Suse 11 Sp3 , 2 NM , 2 RM
> one NM - 3 GB 6 v core
>            Reporter: Bibin A Chundatt
>            Assignee: Rohith
>            Priority: Blocker
>         Attachments: 0001-YARN-3733.patch, 0002-YARN-3733.patch, YARN-3733.patch
>
>
> Steps to reproduce
> =================
> 1. Install HA with 2 RM 2 NM (3072 MB * 2 total cluster)
> 2. Configure map and reduce size to 512 MB  after changing scheduler minimum size to
512 MB
> 3. Configure capacity scheduler and AM limit to .5 (DominantResourceCalculator is configured)
> 4. Submit 30 concurrent task 
> 5. Switch RM
> Actual
> =====
> For 12 Jobs AM gets allocated and all 12 starts running
> No other Yarn child is initiated , *all 12 Jobs in Running state for ever*
> Expected
> =======
> Only 6 should be running at a time since max AM allocated is .5 (3072 MB)



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