pan3793 commented on code in PR #45266:
URL: https://github.com/apache/spark/pull/45266#discussion_r1503740095
##########
core/src/main/scala/org/apache/spark/Dependency.scala:
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@@ -206,6 +206,21 @@ class ShuffleDependency[K: ClassTag, V: ClassTag, C:
ClassTag](
finalizeTask = Option(task)
}
+ // Set the threshold to 1 billion which represents approximately 1GB of
memory
+ // allocated to map output statuses.
Review Comment:
is the assumption based on `CompressedMapStatus`? For shuffle partition
number exceeds `spark.shuffle.minNumPartitionsToHighlyCompress`(default is
2000), `HighlyCompressedMapStatus` is used, is it correct then?
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