Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/5286#discussion_r27457157
--- Diff:
core/src/main/scala/org/apache/spark/shuffle/IndexShuffleBlockManager.scala ---
@@ -123,3 +114,10 @@ class IndexShuffleBlockManager(conf: SparkConf)
extends ShuffleBlockManager {
override def stop(): Unit = {}
}
+
+private[spark] object IndexShuffleBlockManager {
+ // No-op reduce ID used in interactions with disk store and
BlockObjectWriter.
+ // The disk store currently expects puts to relate to a (map, reduce)
pair, but in the sort
+ // shuffle outputs from a map for several
--- End diff --
Please continue
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