showuon commented on code in PR #12667: URL: https://github.com/apache/kafka/pull/12667#discussion_r975975334
########## core/src/main/scala/kafka/log/ProducerStateManager.scala: ########## @@ -233,10 +233,16 @@ private[log] class ProducerAppendInfo(val topicPartition: TopicPartition, // If there is no current producer epoch (possibly because all producer records have been deleted due to // retention or the DeleteRecords API) accept writes with any sequence number - if (!(currentEntry.producerEpoch == RecordBatch.NO_PRODUCER_EPOCH || inSequence(currentLastSeq, appendFirstSeq))) { + if (currentEntry.producerEpoch != RecordBatch.NO_PRODUCER_EPOCH && !inSequence(currentLastSeq, appendFirstSeq)) { throw new OutOfOrderSequenceException(s"Out of order sequence number for producer $producerId at " + - s"offset $offset in partition $topicPartition: $appendFirstSeq (incoming seq. number), " + - s"$currentLastSeq (current end sequence number)") + s"offset $offset in partition $topicPartition: producer request epoch $producerEpoch, " + + s"current entry epoch ${currentEntry.producerEpoch}, " + + s"updating entry epoch ${updatedEntry.producerEpoch}, " + + s"append first seq $appendFirstSeq, " + + s"updating entry last seq ${updatedEntry.lastSeq}, " + + s"updating batch empty ${updatedEntry.isEmpty}" + Review Comment: nit: updating entry last seq will be `-1` if `updatedEntry.isEmpty`. Is this line still necessary? Or you think it's possible this value might be changed by other thread? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org