Bulk Operation

KAFKA-5527 Develop and understanding of how to tune transactions for optimal performance

KAFKA-5527 TransactionsTest.testFencingOnAddPartitions Timeout

KAFKA-5527 Fix transaction marker grouping by producerId in TC

KAFKA-5527 Additional Test Cases for ReplicaManager

KAFKA-5527 Producer with transactionalId should be able to send outside of a transaction

KAFKA-5527 OutOfSequence error should be fatal

KAFKA-5527 Producer should await transaction completion in close

KAFKA-5527 Add tools and metrics to diagnose problems with the idempotent producer and transactions

KAFKA-5527 TransactionManager should send and `AddOffsetsToTxn` request only once per group per transaction

KAFKA-5527 Suggested clean-ups from message format V2 review

KAFKA-5527 DebuggingConsumerId and DebuggingMessageFormatter and message format v2

KAFKA-5527 FetchRequestTest should use batches with more than one message

KAFKA-5527 Remove cyclic dependency between record and protocol packages

KAFKA-5527 Improve CRC tests so that we verify which fields are included in the CRC

KAFKA-5527 LogCleaner tests to verify behaviour of message format v2