Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/1182#issuecomment-47309664
Hey Kyle,
It might be nicer to track down the root cause of this issue. I think this
happens to make the exception go away, but I rand the reproduction provided by
@bxshi and there are other problems that co-occur with the exception. So I
might spend some effort tracking it down.
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