artemlivshits commented on code in PR #13579:
URL: https://github.com/apache/kafka/pull/13579#discussion_r1170670464
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core/src/main/scala/kafka/coordinator/transaction/TransactionCoordinator.scala:
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@@ -332,24 +331,45 @@ class TransactionCoordinator(txnConfig: TransactionConfig,
debug(s"Returning ${Errors.INVALID_REQUEST} error code to client for
$transactionalId's AddPartitions request for verification")
responseCallback(AddPartitionsToTxnResponse.resultForTransaction(transactionalId,
partitions.map(_ -> Errors.INVALID_REQUEST).toMap.asJava))
} else {
- val result: ApiResult[(Int, TransactionMetadata)] =
getTransactionMetadata(transactionalId, producerId, producerEpoch, partitions)
-
+ val result: ApiResult[Map[TopicPartition, Errors]] =
+ txnManager.getTransactionState(transactionalId).flatMap {
+ case None => Left(Errors.INVALID_PRODUCER_ID_MAPPING)
+
+ case Some(epochAndMetadata) =>
+ val txnMetadata = epochAndMetadata.transactionMetadata
+
+ // generate the new transaction metadata with added partitions
+ txnMetadata.inLock {
+ if (txnMetadata.producerId != producerId) {
+ Left(Errors.INVALID_PRODUCER_ID_MAPPING)
+ } else if (txnMetadata.producerEpoch != producerEpoch) {
+ Left(Errors.PRODUCER_FENCED)
+ } else if (txnMetadata.pendingTransitionInProgress &&
!(txnMetadata.pendingState == Some(Ongoing) && txnMetadata.state == Ongoing)) {
+ // return a retriable exception to let the client backoff and
retry
+ Left(Errors.CONCURRENT_TRANSACTIONS)
Review Comment:
Do we need this condition for verification case? No matter what the pending
state is, if the the state contains the partition, we're good, otherwise, we'd
fail during verification.
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