class RDDBarrier[T] extends AnyRef
:: Experimental :: Wraps an RDD in a barrier stage, which forces Spark to launch tasks of this stage together. org.apache.spark.rdd.RDDBarrier instances are created by org.apache.spark.rdd.RDD#barrier.
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- @Experimental() @Since( "2.4.0" )
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mapPartitions[S](f: (Iterator[T]) ⇒ Iterator[S], preservesPartitioning: Boolean = false)(implicit arg0: ClassTag[S]): RDD[S]
:: Experimental :: Returns a new RDD by applying a function to each partition of the wrapped RDD, where tasks are launched together in a barrier stage.
:: Experimental :: 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 org.apache.spark.rdd.RDD#mapPartitions. Please see the API doc there.
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- @Experimental() @Since( "2.4.0" )
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