mridulm commented on code in PR #41906:
URL: https://github.com/apache/spark/pull/41906#discussion_r1257430884
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core/src/main/scala/org/apache/spark/MapOutputTracker.scala:
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@@ -805,6 +808,8 @@ private[spark] class MapOutputTrackerMaster(
shuffleStatuses.get(shuffleId) match {
case Some(shuffleStatus) =>
shuffleStatus.updateMapOutput(mapId, bmAddress)
+ case None if shuffleMigrationEnabled =>
+ logDebug(s"Asked to update map output for unknown shuffle
${shuffleId}")
Review Comment:
I am very hesitant with making this debug.
If missing, in non migration context, it expected to be logged as an error -
making it debug would essentially suppress that message.
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