jolshan commented on code in PR #17402:
URL: https://github.com/apache/kafka/pull/17402#discussion_r1821572727
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core/src/main/scala/kafka/coordinator/transaction/TransactionMetadata.scala:
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@@ -346,14 +346,14 @@ private[transaction] class TransactionMetadata(val
transactionalId: String,
// Since the state change was successfully written to the log, unset the
flag for a failed epoch fence
hasFailedEpochFence = false
- val (updatedProducerId, updatedProducerEpoch) =
+ val (updatedProducerId, updatedProducerEpoch, updatedLastProducerEpoch) =
// If we overflowed on epoch bump, we have to set it as the producer ID
now the marker has been written.
if (clientTransactionVersion.supportsEpochBump() && nextProducerId !=
RecordBatch.NO_PRODUCER_ID) {
- (nextProducerId, 0.toShort)
+ (nextProducerId, 0.toShort, producerEpoch)
Review Comment:
I thought this was correct since this will be the correct transition from
the coordinator point of view.
Otherwise we will have max epoch - 1 as the last epoch. This was originally
changed due to how we check for valid epochs.
I would have to double check, but I think this was also how the retry is
checked
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