ivoson commented on code in PR #52336:
URL: https://github.com/apache/spark/pull/52336#discussion_r2638701461
##########
core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala:
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@@ -2022,8 +2053,26 @@ private[spark] class DAGScheduler(
// The epoch of the task is acceptable (i.e., the task was
launched after the most
// recent failure we're aware of for the executor), so mark
the task's output as
// available.
- mapOutputTracker.registerMapOutput(
+ val isChecksumMismatched = mapOutputTracker.registerMapOutput(
shuffleStage.shuffleDep.shuffleId, smt.partitionId, status)
+ if (isChecksumMismatched) {
+ shuffleStage.isChecksumMismatched = isChecksumMismatched
Review Comment:
Currently, it's not setting back to `false`. We'll only recompute once any
new shuffle checksum mismatch is detected. Maybe we can remove the `flag` to
avoid the confusion here.
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