[jira] [Created] (FLINK-7637) FlinkKinesisProducer violates at-least-once guarantees

[Shang Yuanchun (Jira)]

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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