Compatibility issue with 0.20.203.
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Key: MAPREDUCE-3377
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3377
Project: Hadoop Map/Reduce
Issue Type: Bug
Affects Versions: 0.20.203.0
Environment: 0.20.203.0 standalone JDK 1.6 Linux
Reporter: Jane Chen
I have an OutputFormat which implements Configurable. I set new config entries
to a job configuration during checkOutputSpec() so that the tasks will get the
config entries through the job configuration. This works fine in 0.20.2, but
stopped working starting from 0.20.203. With 0.20.203, my OutputFormat still
has the configuration set, but the copy a task gets does not have the new
entries that are set as part of checkOutputSpec().
I believe that the problem is with JobClient. The job configuration needs to
wait till checkOutputSpec() is returned before being cloned and submitted.
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