Github user rxin commented on the pull request:
https://github.com/apache/spark/pull/329#issuecomment-39646568
I agree with @liancheng that it is best not to change the existing
semantics. At least I've been using parallelize to just launch a bunch of tasks
without passing it a Seq that is big enough. What we should make sure is Spark
doesn't crash in this case (parallelize s iterable who size < num partitions).
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