Github user mateiz commented on the pull request: https://github.com/apache/spark/pull/58#issuecomment-36481941 Anyway maybe let's do it like this: if you test it with this change and see that all the commands (stop, resume, etc) still work, then we can keep it. But we should also add something in the "launch" command that makes sure there are more than 0 slaves.
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