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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4990) Construct debug strings conditionally in ShuffleHandler.Shuffle#sendMapOutput()
Date Tue, 19 Mar 2013 10:49:21 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13606220#comment-13606220
] 

Hudson commented on MAPREDUCE-4990:
-----------------------------------

Integrated in Hadoop-Yarn-trunk #160 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/160/])
    MAPREDUCE-4990. Construct debug strings conditionally in ShuffleHandler.Shuffle#sendMapOutput().
(kkambatl via tucu) (Revision 1457914)

     Result = SUCCESS
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1457914
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/src/main/java/org/apache/hadoop/mapred/ShuffleHandler.java

                
> Construct debug strings conditionally in ShuffleHandler.Shuffle#sendMapOutput()
> -------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4990
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4990
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.0.3-alpha, 0.23.5
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Trivial
>             Fix For: 2.0.5-beta
>
>         Attachments: mr-4990.patch
>
>
> In {{#sendMapOutput()}}, the debug statements are not wrapped in the customary {{#isDebugEnabled()}}
condition. Given this piece of code is critical for performance, it would be nice to fix it.

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