Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/1321#issuecomment-48999051
@rxin is there a case where you think local execution will yield a relevant
performance improvement? I don't see why shopping a task for a few milliseconds
is a bit deal. The main use case I see for this is people running `take` in a
repl... in this case the cluster scheduler is not backlogged because they can't
access the repl at all until the prior command has finished anyways.
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