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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3812) Change default memory slot sizes to be 1.5GB
Date Tue, 07 Feb 2012 02:08:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201995#comment-13201995
] 

Hadoop QA commented on MAPREDUCE-3812:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12513549/MAPREDUCE-3812.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 12 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these unit tests:
                  org.apache.hadoop.mapreduce.v2.app.TestRMContainerAllocator

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1807//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1807//console

This message is automatically generated.
                
> Change default memory slot sizes to be 1.5GB
> --------------------------------------------
>
>                 Key: MAPREDUCE-3812
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3812
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2, performance
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3812-20120205.txt, MAPREDUCE-3812-20120206.1.txt, MAPREDUCE-3812-20120206.txt,
MAPREDUCE-3812.patch
>
>
> After a few performance improvements tracked at MAPREDUCE-3561, like MAPREDUCE-3511 and
MAPREDUCE-3567, even a 100K maps job can also run within 1GB vmem. We earlier increased AM
slot size from 1 slot to two slots to work around the issues with AM heap. Now that those
are fixed, we should go back to 1GB.
> This is just a configuration change.

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