"Output directory already exists" error in gridmix when
gridmix.output.directory is not defined
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Key: MAPREDUCE-1979
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1979
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: contrib/gridmix
Reporter: Ravi Gummadi
Assignee: Ravi Gummadi
"Output directory already exists" error is seen in gridmix when
gridmix.output.directory is not defined. When gridmix.output.directory is not
defined, then gridmix uses inputDir/gridmix/ as output path for gridmix run.
Because gridmix is creating outputPath(in this case, inputDir/gridmix/) at the
begining, the output path to generate-data-mapreduce-job(i.e. inputDir) already
exists and becomes error from mapreduce.
There is no need of creating this outputPath in any case(whether user specifies
the path using gridmix.output.directory OR gridmix itself considering
inputDir/gridmix/ ) because the paths are automatically created for output
paths of mapreduce jobs(like mkdir -p).
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