tgravescs commented on a change in pull request #35085:
URL: https://github.com/apache/spark/pull/35085#discussion_r830257329
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File path: core/src/main/scala/org/apache/spark/ContextCleaner.scala
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@@ -235,8 +235,10 @@ private[spark] class ContextCleaner(
try {
if (mapOutputTrackerMaster.containsShuffle(shuffleId)) {
logDebug("Cleaning shuffle " + shuffleId)
- mapOutputTrackerMaster.unregisterShuffle(shuffleId)
+ // Shuffle must be removed before it's unregistered from the output
tracker
+ // to find blocks served by the shuffle service on deallocated
executors
shuffleDriverComponents.removeShuffle(shuffleId, blocking)
+ mapOutputTrackerMaster.unregisterShuffle(shuffleId)
Review comment:
Yeah, I'm not sure it really matters, other then possibly the way it
fails, either way if someone tries to use the shuffle mid way through the
cleanup, things are going to fail. I would think this is fine.
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