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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3699) Default RPC handlers are very low for YARN servers
Date Thu, 26 Jan 2012 21:59:40 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194218#comment-13194218
] 

Hudson commented on MAPREDUCE-3699:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #1613 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1613/])
    MAPREDUCE-3699. Increased RPC handlers for all YARN servers to reasonable values for working
at scale. Contributed by Hitesh Shah.

vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1236396
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
* /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-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/resources/yarn-default.xml

                
> Default RPC handlers are very low for YARN servers
> --------------------------------------------------
>
>                 Key: MAPREDUCE-3699
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3699
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Hitesh Shah
>             Fix For: 0.23.1
>
>         Attachments: MR-3699.1.patch, MR-3699.2.patch, MR-3699.3.patch
>
>
> Mainly NM has a default of 5, RM has 10 and AM also has 10 irrespective of num-slots,
num-nodes and num-tasks respectively. Though ideally we want to scale according to slots/nodes/tasks,
for now increasing the defaults should be enough.

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