jolshan commented on code in PR #17402: URL: https://github.com/apache/kafka/pull/17402#discussion_r1795916621
########## clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java: ########## @@ -1568,6 +1571,17 @@ public void handleResponse(AbstractResponse response) { Errors error = endTxnResponse.error(); if (error == Errors.NONE) { + // For transaction version 5+, the broker includes the producerId and producerEpoch in the EndTxnResponse. + // KIP-890 Part 2 mandates bumping the epoch after every transaction. If the epoch overflows, + // a new producerId is returned with epoch set to 0. + if (isTransactionV2Enabled) { Review Comment: We don't want to change what the producer is doing mid transaction. We can not control what a user does -- they can change the TV at any time. We want them to be able to upgrade TV without having to stop all transactions. -- 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