cloud-fan commented on a change in pull request #28022: [SPARK-31253][SQL] Add
metrics to AQE shuffle reader
URL: https://github.com/apache/spark/pull/28022#discussion_r400297634
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/CustomShuffleReaderExec.scala
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@@ -62,20 +61,113 @@ case class CustomShuffleReaderExec private(
}
}
- override def stringArgs: Iterator[Any] = Iterator(description)
+ override def stringArgs: Iterator[Any] = {
+ val desc = if (isLocalReader) {
+ "local"
+ } else {
+ if (hasCoalescedPartition && hasSkewedPartition) {
+ "coalesced and skewed"
+ } else if (hasCoalescedPartition) {
+ "coalesced"
+ } else if (hasSkewedPartition) {
+ "skewed"
+ } else {
+ ""
+ }
+ }
+ Iterator(desc)
Review comment:
perf doesn't really matter here...
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