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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5596) Allow configuring the number of threads used to serve shuffle connections
Date Wed, 30 Oct 2013 13:05:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13809055#comment-13809055
] 

Hudson commented on MAPREDUCE-5596:
-----------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #1594 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1594/])
MAPREDUCE-5596. Allow configuring the number of threads used to serve shuffle connections.
Contributed by Sandy Ryza (jlowe: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1536711)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/src/main/java/org/apache/hadoop/mapred/ShuffleHandler.java


> Allow configuring the number of threads used to serve shuffle connections
> -------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5596
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5596
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>             Fix For: 3.0.0, 2.3.0, 2.2.1
>
>         Attachments: MAPREDUCE-5596-1.patch, MAPREDUCE-5596.patch
>
>
> MR1 had mapreduce.tasktracker.http.threads.  MR2 always uses the Netty default 2 * Runtime.availableProcessors().
 We should make this configurable.



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