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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2398) MRBench: setting the baseDir parameter has no effect
Date Tue, 06 Sep 2011 15:14:09 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13098071#comment-13098071
] 

Hadoop QA commented on MAPREDUCE-2398:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12493159/MAPREDUCE-2398_v2-0.20.203.0.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 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/615//console

This message is automatically generated.

> MRBench: setting the baseDir parameter has no effect
> ----------------------------------------------------
>
>                 Key: MAPREDUCE-2398
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2398
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: benchmarks
>    Affects Versions: 0.20.2, 0.22.0
>            Reporter: Michael Noll
>            Priority: Minor
>             Fix For: 0.22.0
>
>         Attachments: MAPREDUCE-2398-trunk.patch, MAPREDUCE-2398_0.20.2.patch, MAPREDUCE-2398_v2-0.20.203.0.patch
>
>
> The optional {{-baseDir}} parameter lets user specify the base DFS path for output/input
of MRBench.
> However, the two private variables {{INPUT_DIR}} and {{OUTPUT_DIR}} (MRBench.java) are
not updated in the case that the default value of  {{-baseDir}} is actually overwritten by
the user. Hence any input and output is always written to the default locations ({{/benchmarks/MRBench/...}}),
even though the user-supplied location for {{-baseDir}} is created (and eventually deleted
again) on HDFS.
> The bug affects at least Hadoop 0.20.2 and the current trunk (r1082703) as of March 21,
2011.

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