Tzu-Li (Gordon) Tai created FLINK-7637:
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Summary: FlinkKinesisProducer violates at-least-once guarantees
Key: FLINK-7637
URL: https://issues.apache.org/jira/browse/FLINK-7637
Project: Flink
Issue Type: Bug
Components: Kinesis Connector
Reporter: Tzu-Li (Gordon) Tai
Assignee: Tzu-Li (Gordon) Tai
Priority: Blocker
Fix For: 1.4.0, 1.3.3
Currently, there is no flushing of KPL outstanding records on checkpoints in
the {{FlinkKinesisProducer}}. Likewise to the at-least-once issue on the Flink
Kafka producer before, this may lead to data loss if there are asynchronous
failing records after a checkpoint which the records was part of was completed.
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