Fabian Paul created FLINK-26254:
-----------------------------------
Summary: KafkaSink might violate order of sequence numbers and
risk exactly-once processing
Key: FLINK-26254
URL: https://issues.apache.org/jira/browse/FLINK-26254
Project: Flink
Issue Type: Bug
Components: Connectors / Kafka
Affects Versions: 1.14.3, 1.15.0
Reporter: Fabian Paul
When running the KafkaSink in exactly-once mode with a very low checkpoint
interval users are seeing `OutOfOrderSequenceException`.
It could be caused by the fact that the connector has a pool of KafkaProducers
and the sequence numbers are not shared/reset if a new KafkaProducer tries to
write to a partition while the previous KafkaProducer is still occupied for
committing.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
