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Date: Mon, 6 Feb 2012 23:29:02 +0000 (UTC)
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Subject: [jira] [Commented] (MAPREDUCE-3810) MR AM's ContainerAllocator is
 assigning the allocated containers very slowly
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201785#comment-13201785 ] 

Hudson commented on MAPREDUCE-3810:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #1687 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1687/])
    MAPREDUCE-3810. Performance tweaks - reduced logging in AM and defined hascode/equals for ResourceRequest & Priority. Contributed by Vinod K V.

acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1241205
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/job/impl/TaskAttemptImpl.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskImpl.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMContainerAllocator.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMContainerRequestor.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRApp.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRAppBenchmark.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/Priority.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ResourceRequest.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/impl/pb/PriorityPBImpl.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/impl/pb/ResourceRequestPBImpl.java

                
> MR AM's ContainerAllocator is assigning the allocated containers very slowly
> ----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3810
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3810
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2, performance
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Blocker
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3810-20120205.txt
>
>
> This is mostly due to logging and other not-so-cheap operations we are doing as part of the AM->RM heartbeat cycle.

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