kirktrue commented on code in PR #17022: URL: https://github.com/apache/kafka/pull/17022#discussion_r2143261652
########## 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: So it sounds like `batch.producerEpoch() < producerIdAndEpoch.epoch` is really more appropriate as a "staleness" check and let the `TransactionManager` handle the other cases? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org