Github user mateiz commented on the pull request:
https://github.com/apache/spark/pull/2132#issuecomment-53622923
When would the RDD not have any partitions? It seems that if you use a
reduce, updateStateByKey, or anything like that, we will always have
partitions, so this won't save a lot of hassle in most jobs. It would be better
if you implement a cleanup process in your application to get rid of these
files.
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