Github user andrewor14 commented on the pull request: https://github.com/apache/spark/pull/1349#issuecomment-48684552 As of this comment, I have tested these changes in local, standalone and yarn modes, running with additional python files and jars and various configs, and everything behaves as expected. I do not have access to a mesos cluster, but there is basically no mesos-specific code in spark submit so I believe it's OK.
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