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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2722) Gridmix simulated job's map's hdfsBytesRead counter is wrong when compressed input is used
Date Thu, 01 Mar 2012 09:09:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13219935#comment-13219935
] 

Hadoop QA commented on MAPREDUCE-2722:
--------------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12516656/2722.v1.patch
  against trunk revision .

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

    +1 tests included.  The patch appears to include 3 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 passed unit tests in .

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

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1975//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1975//console

This message is automatically generated.
                
> Gridmix simulated job's map's hdfsBytesRead counter is wrong when compressed input is
used
> ------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2722
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2722
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/gridmix
>            Reporter: Ravi Gummadi
>            Assignee: Ravi Gummadi
>         Attachments: 2722.v1.patch, MR2722.patch
>
>
> When compressed input was used by original job's map task, then the simulated job's map
task's hdfsBytesRead counter is wrong if compression emulation is enabled. This issue is because
hdfsBytesRead of map task of original job is considered as uncompressed map input size by
Gridmix.

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