RDDBarrier.
mapPartitionsWithIndex
Returns a new RDD by applying a function to each partition of the wrapped RDD, while tracking the index of the original partition. And all tasks are launched together in a barrier stage. The interface is the same as RDD.mapPartitionsWithIndex(). Please see the API doc there.
RDD.mapPartitionsWithIndex()
New in version 3.0.0.
Notes
This API is experimental