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From "shenhong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-271) Fair scheduler hits IllegalStateException trying to reserve different apps on same node
Date Mon, 31 Dec 2012 11:24:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13541336#comment-13541336
] 

shenhong commented on YARN-271:
-------------------------------

I found this patch will result to a infinite loop when maxAssign=0. I will create a jira to
solve this bug.
                
> Fair scheduler hits IllegalStateException trying to reserve different apps on same node
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-271
>                 URL: https://issues.apache.org/jira/browse/YARN-271
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>    Affects Versions: 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>             Fix For: 2.0.3-alpha
>
>         Attachments: YARN-271-1.patch, YARN-271.patch
>
>
> After the fair scheduler reserves a container on a node, it doesn't check for reservations
it just made when trying to make more reservations during the same heartbeat.

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