[jira] [Commented] (FLINK-7931) FlinkKinesisProducer violates at-least-once guarantees (1.3 branch)

["Till Rohrmann (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-7931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16654902#comment-16654902 ] 

Till Rohrmann commented on FLINK-7931:
--------------------------------------

Is this still relevant [~tzulitai] or can this be closed?

> FlinkKinesisProducer violates at-least-once guarantees (1.3 branch)
> -------------------------------------------------------------------
>
>                 Key: FLINK-7931
>                 URL: https://issues.apache.org/jira/browse/FLINK-7931
>             Project: Flink
>          Issue Type: Bug
>          Components: Kinesis Connector
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>            Priority: Blocker
>
> 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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