CalvinConfluent commented on code in PR #17698:
URL: https://github.com/apache/kafka/pull/17698#discussion_r1847485787
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core/src/main/scala/kafka/coordinator/transaction/TransactionCoordinator.scala:
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@@ -564,33 +592,10 @@ class TransactionCoordinator(txnConfig: TransactionConfig,
else
PrepareAbort
- // Maybe allocate new producer ID if we are bumping epoch and
epoch is exhausted
- val nextProducerIdOrErrors =
- if (clientTransactionVersion.supportsEpochBump() &&
!txnMetadata.pendingState.contains(PrepareEpochFence) &&
txnMetadata.isProducerEpochExhausted) {
- try {
- Right(producerIdManager.generateProducerId())
- } catch {
- case e: Exception => Left(Errors.forException(e))
- }
- } else {
- Right(RecordBatch.NO_PRODUCER_ID)
- }
-
- if (nextState == PrepareAbort &&
txnMetadata.pendingState.contains(PrepareEpochFence)) {
- // We should clear the pending state to make way for the
transition to PrepareAbort and also bump
- // the epoch in the transaction metadata we are about to
append.
- isEpochFence = true
- txnMetadata.pendingState = None
- txnMetadata.producerEpoch = producerEpoch
- txnMetadata.lastProducerEpoch = RecordBatch.NO_PRODUCER_EPOCH
- }
-
- nextProducerIdOrErrors.flatMap {
- nextProducerId =>
- Right(coordinatorEpoch,
txnMetadata.prepareAbortOrCommit(nextState, clientTransactionVersion,
nextProducerId.asInstanceOf[Long], time.milliseconds()))
- }
+ generateTxnTransitMetadataForTxnCompletion(nextState)
case CompleteCommit =>
- if (txnMarkerResult == TransactionResult.COMMIT)
+ // The epoch should be valid as it is checked above
+ if (txnMarkerResult == TransactionResult.COMMIT ||
currentTxnMetadataIsAtLeastTransactionsV2)
Review Comment:
There are only 2 types of TransactionResult, commit and abort. If the
txnMarkerResult is not a commit then it is an abort.
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