mridulm commented on code in PR #37922:
URL: https://github.com/apache/spark/pull/37922#discussion_r1066428217
##########
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/RemoteBlockPushResolver.java:
##########
@@ -396,6 +403,67 @@ public void applicationRemoved(String appId, boolean
cleanupLocalDirs) {
}
}
+ @Override
+ public void removeShuffleMerge(RemoveShuffleMerge msg) {
+ AppShuffleInfo appShuffleInfo = validateAndGetAppShuffleInfo(msg.appId);
+ if (appShuffleInfo.attemptId != msg.appAttemptId) {
+ throw new IllegalArgumentException(
+ String.format("The attempt id %s in this RemoveShuffleMerge message
does not match "
+ + "with the current attempt id %s stored in shuffle service
for application %s",
+ msg.appAttemptId, appShuffleInfo.attemptId, msg.appId));
+ }
+ appShuffleInfo.shuffles.compute(msg.shuffleId, (shuffleId,
mergePartitionsInfo) -> {
+ if (mergePartitionsInfo == null) {
+ if (msg.shuffleMergeId == DELETE_ALL_MERGED_SHUFFLE) {
+ return null;
+ } else {
+ writeAppAttemptShuffleMergeInfoToDB(new AppAttemptShuffleMergeId(
+ msg.appId, msg.appAttemptId, msg.shuffleId, msg.shuffleMergeId));
+ return new AppShuffleMergePartitionsInfo(msg.shuffleMergeId, true);
+ }
+ }
+ boolean deleteCurrentMergedShuffle =
+ msg.shuffleMergeId == DELETE_ALL_MERGED_SHUFFLE ||
+ msg.shuffleMergeId == mergePartitionsInfo.shuffleMergeId;
+ int shuffleMergeId = msg.shuffleMergeId != DELETE_ALL_MERGED_SHUFFLE ?
+ msg.shuffleMergeId : mergePartitionsInfo.shuffleMergeId;
+ AppAttemptShuffleMergeId currentAppAttemptShuffleMergeId =
+ new AppAttemptShuffleMergeId(
+ msg.appId, msg.appAttemptId, msg.shuffleId,
mergePartitionsInfo.shuffleMergeId);
+ AppAttemptShuffleMergeId appAttemptShuffleMergeId = new
AppAttemptShuffleMergeId(
+ msg.appId, msg.appAttemptId, msg.shuffleId, shuffleMergeId);
+ if(deleteCurrentMergedShuffle) {
+ // request to clean up shuffle we are currently hosting
+ if (!mergePartitionsInfo.isFinalized()) {
+ submitCleanupTask(() ->
+ closeAndDeleteOutdatedPartitions(
+ currentAppAttemptShuffleMergeId,
mergePartitionsInfo.shuffleMergePartitions));
+ } else {
+ submitCleanupTask(() ->
+ deleteMergedFiles(currentAppAttemptShuffleMergeId, appShuffleInfo,
+ mergePartitionsInfo.getReduceIds(), false));
+ }
+ } else if(shuffleMergeId < mergePartitionsInfo.shuffleMergeId) {
+ throw new RuntimeException(String.format("Asked to remove old shuffle
merged data for " +
+ "application %s shuffleId %s shuffleMergeId %s, but current
shuffleMergeId %s ",
+ msg.appId, msg.shuffleId, shuffleMergeId,
mergePartitionsInfo.shuffleMergeId));
+ } else if (shuffleMergeId > mergePartitionsInfo.shuffleMergeId) {
+ // cleanup request for newer shuffle - remove the outdated data we
have.
+ if (!mergePartitionsInfo.isFinalized()) {
+ submitCleanupTask(() ->
+ closeAndDeleteOutdatedPartitions(
Review Comment:
All file cleanup is async - for example, when a newer merge id is seen
during finalize, etc.
The metadata removal is immediate and within the critical section - so the
files cant be reached once the method returns.
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