Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/156#discussion_r10647006
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -664,6 +664,22 @@ abstract class RDD[T: ClassTag](
}
/**
+ * Return a Stream that contains all of the elements in this RDD.
+ *
+ * In case of iterating it consumes memory as the biggest partition in
cluster.
+ */
+ def toStream(): Stream[T] = {
+ def collectPartition(p: Int): Array[T] = sc.runJob(this, (iter:
Iterator[T]) => iter.toArray, Seq(p), allowLocal = false).head
+ var buffer = Stream.empty[T]
+ for (p <- 0 until this.partitions.length) {
+ buffer = buffer #::: {
--- End diff --
Can you use a method name instead of this `#:::` operator? It will be very
hard for people to read
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