pyspark.RDDBarrier.mapPartitions¶

RDDBarrier.mapPartitions(f: Callable[[Iterable[T]], Iterable[U]], preservesPartitioning: bool = False) → pyspark.rdd.RDD[U][source]¶

Returns a new RDD by applying a function to each partition of the wrapped RDD, where tasks are launched together in a barrier stage. The interface is the same as RDD.mapPartitions(). Please see the API doc there.

New in version 2.4.0.