Github user fhueske commented on the pull request:
https://github.com/apache/incubator-flink/pull/157#issuecomment-59501331
The problem with this issue is, that you don't know what is happening
inside of the {{jobCommit()}} method.
For Hadoop FileOutputFormats it only removes the temp directory but other
formats might have important logic in there. So removing that call is not a
good solution.
I am currently working on another solution that adds a hook to the
JobManager which is called after all output tasks finished. Will open a PR soon.
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