If you use rdd.mapPartitions(), you'll be able to get a hold of the
iterators for each partiton. Then you should be able to do
iterator.grouped(size) on each of the partitions. I think it may mean you
have 1 element at the end of each partition that may have less than size
elements. If that's okay
How would you do a .grouped(10) on a RDD, is it possible? Here is an
example for a Scala list
scala List(1,2,3,4).grouped(2).toList
res1: List[List[Int]] = List(List(1, 2), List(3, 4))
Would like to group n elements.
