Github user CodingCat commented on the pull request:
https://github.com/apache/spark/pull/306#issuecomment-39400244
@kanzhang I think the tricky part is just here, a normally exited program
seems the same with the ones being interrupted during the running .....though I
think your PR can solve the program and in the other hand, we can remind user
to call sc.stop() after everything is done in 1.0 document.....
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