otterc commented on a change in pull request #33034:
URL: https://github.com/apache/spark/pull/33034#discussion_r657551207
##########
File path:
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/RemoteBlockPushResolver.java
##########
@@ -156,26 +157,31 @@ private AppShufflePartitionInfo
getOrCreateAppShufflePartitionInfo(
@VisibleForTesting
AppShufflePartitionInfo newAppShufflePartitionInfo(
AppShuffleId appShuffleId,
+ int shuffleSequenceId,
int reduceId,
File dataFile,
File indexFile,
File metaFile) throws IOException {
- return new AppShufflePartitionInfo(appShuffleId, reduceId, dataFile,
+ return new AppShufflePartitionInfo(appShuffleId, shuffleSequenceId,
reduceId, dataFile,
new MergeShuffleFile(indexFile), new MergeShuffleFile(metaFile));
}
@Override
- public MergedBlockMeta getMergedBlockMeta(String appId, int shuffleId, int
reduceId) {
+ public MergedBlockMeta getMergedBlockMeta(
+ String appId,
+ int shuffleId,
+ int shuffleSequenceId,
+ int reduceId) {
AppShuffleId appShuffleId = new AppShuffleId(appId, shuffleId);
- File indexFile = getMergedShuffleIndexFile(appShuffleId, reduceId);
+ File indexFile = getMergedShuffleIndexFile(appShuffleId,
shuffleSequenceId, reduceId);
Review comment:
> @otterc prefers to not to change the fetch protocol as it is not
clear when would old shuffleSequenceId can be fetched (for that does renaming
this variable or adding a comment would help?).
@mridulm already mentioned offline that the reducer will never fetch shuffle
data of an old `shuffeSequenceId`.
Already commented here
https://github.com/apache/spark/pull/33034#discussion_r656759577 that is is not
a matter of renaming and adding comment.
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