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https://issues.apache.org/jira/browse/MAPREDUCE-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12899289#action_12899289
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Ravi Gummadi commented on MAPREDUCE-2015:
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Is gridmix.output.directory defined as a relative path ? If so, then also it is
because of the same problem reported at MAPREDUCE-1979 and the patch uploaded
to MAPREDUCE-1979 solves it. Please validate the same and resolve this as
duplicate, if this JIRA is a duplicate of MAPREDUCE-1979.
If relative path is specified for gridmix.output.directory, then also gridmix
tries to create that relative path as ioPath/<relativePath>.
> GridMix always throws an FileAlreadyExistsException even ouput directory is
> not available in HDFS.
> --------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2015
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2015
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/gridmix
> Affects Versions: 0.20.1
> Reporter: Vinay Kumar Thota
> Assignee: Ranjit Mathew
>
> Gridmix always throws an FileAlreadyExistsException even ouput directory is
> not available in HDFS. Actually I was launching the Gridmix in a command line
> for generating the data, before launching I just make sure the output
> directory is not available in the HDFS by deleting the folder if already
> exists.However, I could see output directory already exists exception every
> time. Please see the attached logs for more information.
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