Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/1337#discussion_r14919798
--- Diff: core/src/main/scala/org/apache/spark/rdd/CoalescedRDD.scala ---
@@ -258,7 +258,7 @@ private[spark] class PartitionCoalescer(maxPartitions:
Int, prev: RDD[_], balanc
val pgroup = PartitionGroup(nxt_replica)
groupArr += pgroup
addPartToPGroup(nxt_part, pgroup)
- groupHash += (nxt_replica -> (ArrayBuffer(pgroup))) // list in
case we have multiple
+ groupHash.put(nxt_replica, ArrayBuffer(pgroup)) // list in case we
have multiple
--- End diff --
strictly stylistic -- it made more sense when I was using put below, now
there's no reason for it
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