venkata91 commented on a change in pull request #33644:
URL: https://github.com/apache/spark/pull/33644#discussion_r683848900
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -315,6 +315,12 @@ package object config {
.bytesConf(ByteUnit.MiB)
.createOptional
+ private[spark] val ENABLE_EXECUTOR_TREE_AGGREGATE =
ConfigBuilder("spark.executor.treeAggregate")
Review comment:
For simpler treeAggregate operations, this might add an additional
overhead (not sure if it is worth it or not) if the default behavior is to
spawn a spark job for the last fold operation.
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