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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4617) LeafQueue#pendingOrderingPolicy should always use fixed ordering policy instead of using same as active applications ordering policy
Date Fri, 29 Jan 2016 20:25:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15124143#comment-15124143
] 

Jian He commented on YARN-4617:
-------------------------------

thanks [~Naganarasimha] for reviewing the patch too !

> LeafQueue#pendingOrderingPolicy should always use fixed ordering policy instead of using
same as active applications ordering policy
> ------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4617
>                 URL: https://issues.apache.org/jira/browse/YARN-4617
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>    Affects Versions: 2.8.0
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>             Fix For: 2.8.0
>
>         Attachments: 0001-YARN-4617.patch, 0001-YARN-4617.patch, 0002-YARN-4617.patch,
0003-YARN-4617.patch, 0004-YARN-4617.patch, 0005-YARN-4617.patch, 0006-YARN-4617.patch
>
>
> In discussion with [~leftnoteasy] in the JIRA [comment|https://issues.apache.org/jira/browse/YARN-4479?focusedCommentId=15108236&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15108236]
pointed out that {{LeafQueue#pendingOrderingPolicy}} should NOT be assumed to be same as active
applications ordering policy. It causes an issue when using fair ordering policy.
> Expectations of this JIRA should include
> # Create FifoOrderingPolicyForPendingApps which extends FifoOrderingPolicy.
> # Comparator of new ordering policy should use RecoveryComparator,PriorityComparator
and Fifocomparator in order respectively.
> # Clean up {{LeafQueue#pendingOPForRecoveredApps}} which is no more required once new
fixed ordering policy is created pending applications.



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