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https://issues.apache.org/jira/browse/FLINK-31305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17705651#comment-17705651
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Tzu-Li (Gordon) Tai edited comment on FLINK-31305 at 3/28/23 12:22 AM:
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Merged via
* {{apache/flink:main}} 7f47c11da1bbbd6e7650d43742694f2fa0ee8a3f
* {{{}apache/flink:release-1.16{}}}: df6c4345d2e1b321cd77e74aa2b028b482b69f3c
* {{{}apache/flink:release-1.17{}}}: b8a9fe5a9942fb6cf11ed56a807d68d375339259
Pending merges for {{apache/flink-connector-kafka}} as well as any necessary
backports.
was (Author: tzulitai):
Merged for {{apache/flink:main}} with 7f47c11da1bbbd6e7650d43742694f2fa0ee8a3f
Pending merges for {{apache/flink-connector-kafka}} as well as any necessary
backports.
> KafkaWriter doesn't wait for errors for in-flight records before completing
> flush
> ---------------------------------------------------------------------------------
>
> Key: FLINK-31305
> URL: https://issues.apache.org/jira/browse/FLINK-31305
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.17.0, 1.16.1
> Reporter: Mason Chen
> Assignee: Mason Chen
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.18.0
>
>
> The KafkaWriter flushing needs to wait for all in-flight records to send
> successfully. This can be achieved by tracking requests and returning a
> response from the registered callback from the producer#send() logic.
> There is potential for data loss since the checkpoint does not accurately
> reflect that all records have been sent successfully, to preserve at least
> once semantics.
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