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https://issues.apache.org/jira/browse/YARN-1631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14524045#comment-14524045
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Wangda Tan commented on YARN-1631:
----------------------------------

[~tgraves], we have a concurrent comment, just closed this JIRA, see my 
comment: 
https://issues.apache.org/jira/browse/YARN-1631?focusedCommentId=14524039&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14524039

> Container allocation issue in Leafqueue assignContainers()
> ----------------------------------------------------------
>
>                 Key: YARN-1631
>                 URL: https://issues.apache.org/jira/browse/YARN-1631
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 2.2.0
>         Environment: SuSe 11 Linux 
>            Reporter: Sunil G
>            Assignee: Sunil G
>         Attachments: Yarn-1631.1.patch, Yarn-1631.2.patch
>
>
> Application1 has a demand of 8GB[Map Task Size as 8GB] which is more than 
> Node_1 can handle.
> Node_1 has a size of 8GB and 2GB is used by Application1's AM.
> Hence reservation happened for remaining 6GB in Node_1 by Application1.
> A new job is submitted with 2GB AM size and 2GB task size with only 2 Maps to 
> run.
> Node_2 also has 8GB capability.
> But Application2's AM cannot be launched in Node_2. And Application2 waits 
> longer as only 2 Nodes are available in cluster.



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