jolshan commented on code in PR #20577:
URL: https://github.com/apache/kafka/pull/20577#discussion_r2377029909
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core/src/main/scala/kafka/log/UnifiedLog.scala:
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@@ -1067,8 +1067,19 @@ class UnifiedLog(@volatile var logStartOffset: Long,
// transaction is completed or aborted. We can guarantee the
transaction coordinator knows about the transaction given step 1 and that the
transaction is still
// ongoing. If the transaction is expected to be ongoing, we will
not set a VerificationGuard. If the transaction is aborted,
hasOngoingTransaction is false and
// requestVerificationGuard is the sentinel, so we will throw an
error. A subsequent produce request (retry) should create verification state
and return to phase 1.
- if (batch.isTransactional &&
!hasOngoingTransaction(batch.producerId) &&
batchMissingRequiredVerification(batch, requestVerificationGuard))
- throw new InvalidTxnStateException("Record was not part of an
ongoing transaction")
+ if (batch.isTransactional &&
!hasOngoingTransaction(batch.producerId)) {
+ // Check epoch first: if producer epoch is stale, throw
recoverable InvalidProducerEpochException.
+ val entry =
producerStateManager.activeProducers.get(batch.producerId)
+ if (entry != null && batch.producerEpoch < entry.producerEpoch) {
Review Comment:
Thanks @chia7712! I've responded there. Will hold off on the picks until we
feel good about the version in trunk.
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