kirktrue commented on code in PR #17022: URL: https://github.com/apache/kafka/pull/17022#discussion_r2138442177
########## 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: @jolshan—There are a number of tests that fail with the latest change: * `TransactionManagerTest.testTransitionToAbortableErrorOnBatchExpiry()` * `TransactionManagerTest.testTransitionToAbortableErrorOnMultipleBatchExpiry()` * `TransactionManagerTest.testBackgroundInvalidStateTransitionIsFatal()` * `TransactionsTest.testBumpTransactionalEpochWithTV2Disabled()` * `TransactionsWithTieredStoreTest.testBumpTransactionalEpochWithTV2Disabled()` From the perspective of those tests, the state should be set to `FATAL_ERROR` in the case where the batch’s producer ID is different from the transaction manager’s. -- 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