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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2017/10/26 10:38:00 UTC

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

     [ https://issues.apache.org/jira/browse/FLINK-7637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aljoscha Krettek updated FLINK-7637:
------------------------------------
    Fix Version/s:     (was: 1.3.3)

> 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
>
>
> 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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