jeffkbkim commented on code in PR #18604:
URL: https://github.com/apache/kafka/pull/18604#discussion_r1925769791
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core/src/main/scala/kafka/log/UnifiedLog.scala:
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@@ -600,6 +600,11 @@ class UnifiedLog(@volatile var logStartOffset: Long,
*/
def hasOngoingTransaction(producerId: Long, producerEpoch: Short): Boolean =
lock synchronized {
val entry = producerStateManager.activeProducers.get(producerId)
+ // With transactions V2, if we see a future epoch, we are likely in the
process of completing the previous transaction.
Review Comment:
To confirm, we shouldn't expect a future epoch, right?
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