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https://issues.apache.org/jira/browse/MAPREDUCE-1614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12863430#action_12863430
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Konstantin Shvachko commented on MAPREDUCE-1614:
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Specifying "test.build.data" changes the output directory for TestDFSIO.
-Dtest.build.data probably doesn't work, as this parameter should be configured.
For NNBench there is an explicit -baseDir option.
Could you please verify that it work.
> TestDFSIO should allow to configure output directory
> ----------------------------------------------------
>
> Key: MAPREDUCE-1614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1614
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: benchmarks
> Affects Versions: 0.20.2
> Reporter: Konstantin Boudnik
>
> TestDFSIO has a hardcoded location for its files to be written and read to or
> from. This location is /benchmarks. However, it might pose a problem if HDFS
> '/' doesn't allow anyone to write into it. It'd be convenient to have a
> command line option to specify an alternative location on demand.
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