Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: mapreduce-issues@hadoop.apache.org
Date: Fri, 26 Oct 2012 12:03:13 +0000 (UTC)
From: "Bikas Saha (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: <1444311935.31757.1351252993473.JavaMail.jiratomcat@arcas>
In-Reply-To: <2112650393.105164.1348182077905.JavaMail.jiratomcat@arcas>
Subject: [jira] [Commented] (MAPREDUCE-4671) AM does not tell the RM about
 container requests that are no longer needed
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/MAPREDUCE-4671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13484868#comment-13484868 ] 

Bikas Saha commented on MAPREDUCE-4671:
---------------------------------------

Ping
                
> AM does not tell the RM about container requests that are no longer needed
> --------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4671
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4671
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.23.3, 2.0.0-alpha
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>         Attachments: MAPREDUCE-4671.1.patch, MAPREDUCE-4671.2.patch, MAPREDUCE-4671.3.patch
>
>
> Say the AM wanted a container at hosts h1, h2, h3. After getting a container at h1 it should tell RM that it no longer needs containers at h2, h3. Otherwise on the RM h2, h3 remain valid allocation locations.
> The AM RMContainerAllocator does remove these resource requests internally. When the resource request container count drops to 0 then it drops the resource request from its tables but forgets to send the 0 sized request to the RM.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira