yikf commented on a change in pull request #31664:
URL: https://github.com/apache/spark/pull/31664#discussion_r584438668
##########
File path:
core/src/test/scala/org/apache/spark/shuffle/sort/SortShuffleManagerSuite.scala
##########
@@ -131,4 +139,29 @@ class SortShuffleManagerSuite extends SparkFunSuite with
Matchers {
)))
}
+ test("Data could not be cleaned up when unregisterShuffle") {
Review comment:
OK, thank you. I'll add test later, And I don't understand why the
protocol should be differentiated on the WriteSide, As follow:
`ShuffleMapTask#runTask`
`
// While we use the old shuffle fetch protocol, we use partitionId as
mapId in the ShuffleBlockId construction.
val mapId = if
(SparkEnv.get.conf.get(config.SHUFFLE_USE_OLD_FETCH_PROTOCOL)) {
partitionId
} else context.taskAttemptId()
`
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