jolshan commented on code in PR #17022:
URL: https://github.com/apache/kafka/pull/17022#discussion_r2138447310
##########
clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java:
##########
@@ -779,14 +779,25 @@ public synchronized void
maybeTransitionToErrorState(RuntimeException exception)
}
synchronized void handleFailedBatch(ProducerBatch batch, RuntimeException
exception, boolean adjustSequenceNumbers) {
- maybeTransitionToErrorState(exception);
+ // Compare the batch with the current ProducerIdAndEpoch. If the
producer IDs are the *same* but the epochs
+ // are *different*, consider the batch as stale.
+ boolean isStaleBatch = batch.producerId() ==
producerIdAndEpoch.producerId && batch.producerEpoch() !=
producerIdAndEpoch.epoch;
Review Comment:
Ok. So I suppose this was being check somewhere else 😅 I suppose we can
revert that.
Perhaps it is sufficient to still fail in the edge case where we have epoch
overflow for now as it doesn't seem like we will make much progress on finding
an alternative.
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