Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/944#discussion_r13317153
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -655,7 +655,19 @@ abstract class RDD[T: ClassTag](
* partitions* and the *same number of elements in each partition* (e.g.
one was made through
* a map on the other).
*/
- def zip[U: ClassTag](other: RDD[U]): RDD[(T, U)] = new ZippedRDD(sc,
this, other)
+ def zip[U: ClassTag](other: RDD[U]): RDD[(T, U)] = {
+ zipPartitions(other, true) {(thisIter, otherIter) =>
+ new Iterator[(T, U)] {
+ def hasNext = (thisIter.hasNext, otherIter.hasNext) match {
+ case (true, true) => true
+ case (false, false) => false
+ case _ => throw new IllegalArgumentException("Can only zip RDDs
with " +
--- End diff --
Make this a SparkException instead
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