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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-300) After YARN-271, fair scheduler can infinite loop and not schedule any application.
Date Thu, 03 Jan 2013 15:26:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13542985#comment-13542985
] 

Hudson commented on YARN-300:
-----------------------------

Integrated in Hadoop-trunk-Commit #3168 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/3168/])
    YARN-300. After YARN-271, fair scheduler can infinite loop and not schedule any application.
Contributed by Sandy Ryza. (Revision 1428387)

     Result = FAILURE
tomwhite : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1428387
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java

                
> After YARN-271, fair scheduler can infinite loop and not schedule any application.
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-300
>                 URL: https://issues.apache.org/jira/browse/YARN-300
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>            Reporter: shenhong
>            Assignee: Sandy Ryza
>              Labels: None
>             Fix For: 2.0.3-alpha
>
>         Attachments: YARN-300.patch, YARN-300.patch
>
>   Original Estimate: 10h
>  Remaining Estimate: 10h
>
> After yarn-271, when yarn.scheduler.fair.max.assign<=0, when a node was been reserved,
fairScheduler will  infinite loop and not schedule any application.

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