mridulm commented on code in PR #48896:
URL: https://github.com/apache/spark/pull/48896#discussion_r1885767172
##########
core/src/main/scala/org/apache/spark/MapOutputTracker.scala:
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@@ -839,7 +851,26 @@ private[spark] class MapOutputTrackerMaster(
}
def registerMapOutput(shuffleId: Int, mapIndex: Int, status: MapStatus):
Unit = {
- shuffleStatuses(shuffleId).addMapOutput(mapIndex, status)
+ if (enableOptimizeCompressedMapStatus && status != null) {
Review Comment:
+1 to @LuciferYang's comment above.
Also, please add more details to the PR description on what is the
optimization/how it helps, etc.
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