Github user yaoshengzhe commented on the pull request: https://github.com/apache/spark/pull/120#issuecomment-37468388 From the code, it looks like this patch is only for renaming, is that really important to use Yarn's jargon instead of master/worker ? I think master/worker is clear enough for most developers and can be understood easily for people new to Yarn. Also, I leave a comment for arg parsing, please take a look.
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