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Date: Tue, 10 Jan 2012 13:16:41 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-3616) Thread pool for launching
 containers in MR AM not expanding as expected
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13183248#comment-13183248 ] 

Hudson commented on MAPREDUCE-3616:
-----------------------------------

Integrated in Hadoop-Mapreduce-0.23-Build #156 (See [https://builds.apache.org/job/Hadoop-Mapreduce-0.23-Build/156/])
    merge MAPREDUCE-3616 from trunk

sseth : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1229395
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/launcher/ContainerLauncherImpl.java
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestContainerLauncher.java
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/launcher
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/launcher/TestContainerLauncher.java
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java

                
> Thread pool for launching containers in MR AM not expanding as expected
> -----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3616
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3616
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mr-am, performance
>    Affects Versions: 0.23.1
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3616-20120105.txt
>
>
> Found this while running some benchmarks on 350 nodes. The thread pool stays at 60 for a long time and only expands to 350 towards the fag end of the job.

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