singhpk234 commented on code in PR #233:
URL:
https://github.com/apache/arrow-datafusion-comet/pull/233#discussion_r1540282633
##########
spark/src/main/scala/org/apache/spark/sql/comet/execution/shuffle/CometShuffleExchangeExec.scala:
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@@ -208,6 +216,50 @@ object CometShuffleExchangeExec extends
ShimCometShuffleExchangeExec {
dependency
}
+ /**
+ * This is copied from Spark
`ShuffleExchangeExec.needToCopyObjectsBeforeShuffle`. The only
+ * difference is that we use `BosonShuffleManager` instead of
`SortShuffleManager`.
+ */
+ private def needToCopyObjectsBeforeShuffle(partitioner: Partitioner):
Boolean = {
Review Comment:
[a bit orthogonal] how did you find it ? by profiling or by just analyzing
the shuffle size, what was the scale of tpcds (3TB) curious ?
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