k-raina commented on code in PR #19522:
URL: https://github.com/apache/kafka/pull/19522#discussion_r2124500762
##########
clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java:
##########
@@ -771,6 +773,15 @@ public synchronized void
maybeTransitionToErrorState(RuntimeException exception)
|| exception instanceof InvalidPidMappingException) {
transitionToFatalError(exception);
} else if (isTransactional()) {
+ // RetriableExceptions from the Sender thread are converted to
Abortable errors
+ // because they indicate that the transaction cannot be completed
after all retry attempts.
+ // This conversion ensures the application layer treats these
errors as abortable,
+ // preventing duplicate message delivery.
Review Comment:
Agree.. Got me confused too.
Thanks for review
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