Daniel Urban created KAFKA-14053:
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Summary: Transactional producer should bump the epoch when a batch
encounters delivery timeout
Key: KAFKA-14053
URL: https://issues.apache.org/jira/browse/KAFKA-14053
Project: Kafka
Issue Type: Bug
Reporter: Daniel Urban
Assignee: Daniel Urban
When a batch fails due to delivery timeout, it is possible that the batch is
still in-flight. Due to underlying infra issues, it is possible that an
EndTxnRequest and a WriteTxnMarkerRequest is processed before the in-flight
batch is processed on the leader. This can cause transactional batches to be
appended to the log after the corresponding abort marker.
This can cause the LSO to be infinitely blocked in the partition, or can even
violate processing guarantees, as the out-of-order batch can become part of the
next transaction.
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