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https://issues.apache.org/jira/browse/MAPREDUCE-3616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13183222#comment-13183222
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Hudson commented on MAPREDUCE-3616:
-----------------------------------
Integrated in Hadoop-Hdfs-trunk #921 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/921/])
MAPREDUCE-3616. Thread pool for launching containers in MR AM not expanding
as expected. (Contributed by Vinod Kumar Vavilapalli)
sseth : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1229394
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/launcher/ContainerLauncherImpl.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestContainerLauncher.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/launcher
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/launcher/TestContainerLauncher.java
*
/hadoop/common/trunk/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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