abstractdog commented on code in PR #326:
URL: https://github.com/apache/tez/pull/326#discussion_r1894647233
##########
tez-runtime-library/src/main/java/org/apache/tez/runtime/library/common/shuffle/impl/ShuffleManager.java:
##########
@@ -583,8 +583,15 @@ Fetcher constructFetcherForHost(InputHost inputHost,
Configuration conf) {
} else {
alreadyCompleted = completedInputSet.get(input.getInputIdentifier());
}
- // Avoid adding attempts which have already completed or have been
marked as OBSOLETE
- if (alreadyCompleted || obsoletedInputs.contains(input)) {
+
+ // Avoid adding attempts which have already completed
+ if (alreadyCompleted) {
+ inputIter.remove();
+ continue;
+ }
+ // Avoid adding attempts which have been marked as OBSOLETE
+ if (isObsoleteInputAttemptIdentifier(input)) {
+ LOG.info("Skipping obsolete input: " + input);
Review Comment:
the original behavior didn't log when we skip an obsolete input, is this an
intentional change?
I can see that we still don't log anything in ShuffleScheduler when the same
happens, so this is more like a LOG.debug, or back to
```
if (alreadyCompleted || isObsoleteInputAttemptIdentifier(input)) {
```
which one do you prefer?
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