JobClient completion poll interval of 5s causes slow tests in local mode
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Key: MAPREDUCE-825
URL: https://issues.apache.org/jira/browse/MAPREDUCE-825
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Aaron Kimball
Assignee: Aaron Kimball
Priority: Minor
The JobClient.NetworkedJob.waitForCompletion() method polls for job completion
every 5 seconds. When running a set of short tests in pseudo-distributed mode,
this is unnecessarily slow and causes lots of wasted time. When bandwidth is
not scarce, setting the poll interval to 100 ms results in a 4x speedup in some
tests. This interval should be parametrized to allow users to control the
interval for testing purposes.
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