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From "Arun C Murthy (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2794) [MR-279] Incorrect metrics value for AvailableGB per queue per user
Date Tue, 04 Oct 2011 04:47:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119900#comment-13119900
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Arun C Murthy commented on MAPREDUCE-2794:
------------------------------------------

John, the patch seems reasonable - can you please add a test case? Thanks.
                
> [MR-279] Incorrect metrics value for AvailableGB per queue per user
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2794
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2794
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Ramya Sunil
>            Assignee: John George
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2794.patch
>
>
> AvailableGB per queue is not the same as AvailableGB per queue per user when the user
limit is set to 100%.
> i.e. if the total available GB of the cluster is 60, and queue "default" has 92% capacity
with 100% as the user limit, AvailableGB per queue default = 55 (i.e. 0.92*60) whereas AvailableGB
per queue for user ramya is 56 (however it should be 55 = 0.92*60*1) 
> Also, unlike the AvailableGB/queue, AvailableGB/queue/user is not decremented when user
ramya is running apps on the "default" queue.

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