Sandy Ryza created MAPREDUCE-4949:
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Summary: Enable multiple pi jobs to run in parallel
Key: MAPREDUCE-4949
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4949
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: examples
Affects Versions: 2.0.2-alpha
Reporter: Sandy Ryza
Assignee: Sandy Ryza
Priority: Minor
Currently the hadoop pi example uses a hardcoded temporary directory to store
its inputs and outputs. This makes it so that only one pi job can run at a
time, and that if it is cancelled, the temporary directory must be manually
deleted.
I propose using a temporary directory based on a timestamp and random number to
avoid these conflicts
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