Github user vanzin commented on the pull request:
https://github.com/apache/spark/pull/699#issuecomment-42595288
LGTM. My only concern (which I mentioned in pr #539) is that an app calling
SparkConf.setAppName() will end up overriding this command line option, right?
That seems a little counter-intuitive to me (I'd expect the command line to
take precedence), but not a big deal.
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