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https://issues.apache.org/jira/browse/MAPREDUCE-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Noll updated MAPREDUCE-2398:
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Description:
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.
was:
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.
Affects Version/s: 0.22.0
> 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
> Attachments: MAPREDUCE-2398_0.20.2.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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