Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/251#issuecomment-38893776
Hey @concretevitamin even though it might not be inherently more
complicated, when we look at a patch like this it's a big win if it can use an
existing well tested piece of code. So in this case there is a bias towards
using the existing mechanism if it's possible.
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