mridulm commented on code in PR #36601:
URL: https://github.com/apache/spark/pull/36601#discussion_r877273610
##########
core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala:
##########
@@ -1885,6 +1885,14 @@ private[spark] class DAGScheduler(
mapOutputTracker.
unregisterMergeResult(shuffleId, reduceId, bmAddress,
Option(mapIndex))
}
+ } else {
+ // Unregister the merge result of <shuffleId, reduceId> if
+ // the FetchFailed event contains a mapIndex of -1, and is not a
+ // MetaDataFetchException which is signified by bmAddress being
null
+ if (bmAddress != null && pushBasedShuffleEnabled) {
Review Comment:
Why do we need `pushBasedShuffleEnabled` check here ?
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