pyspark.RDD.mapPartitionsWithIndex

RDD.mapPartitionsWithIndex(f, preservesPartitioning=False)

Return a new RDD by applying a function to each partition of this RDD, while tracking the index of the original partition.

Examples

>>> rdd = sc.parallelize([1, 2, 3, 4], 4)
>>> def f(splitIndex, iterator): yield splitIndex
>>> rdd.mapPartitionsWithIndex(f).sum()
6

pyspark.RDD.mapPartitions pyspark.RDD.mapPartitionsWithSplit