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https://issues.apache.org/jira/browse/FLINK-11320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17336533#comment-17336533
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Flink Jira Bot commented on FLINK-11320:
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This issue was labeled "stale-major" 7 ago and has not received any updates so
it is being deprioritized. If this ticket is actually Major, please raise the
priority and ask a committer to assign you the issue or revive the public
discussion.
> Support user callback in Kafka sink
> -----------------------------------
>
> Key: FLINK-11320
> URL: https://issues.apache.org/jira/browse/FLINK-11320
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Kafka
> Reporter: Allen Wang
> Priority: Major
> Labels: pull-request-available, stale-major
> Time Spent: 40m
> Remaining Estimate: 0h
>
> We would like to get notified when Flink's Kafka sink successfully produces a
> message to the Kafka cluster for message tracing purposes. The callback
> should be created for the specific item being produced. Currently this
> functionality is inside Flink's internal code and not accessible to the user.
> This change would allow user to get callback when a message is produced in
> the sink:
> * Add a new interface {{UserCallbackFactory}}:
> {code:java}
> public interface UserCallbackFactory<IN> {
> Callback create(IN next);
> }{code}
> * Add new constructor in {{FlinkKafkaProducer}} to pass in an optional
> argument of {{UserCallbackFactory}}
> * In the {{FlinkKafkaProducer.invoke}} method, create a user callback given
> the produced item and invoke this callback.
>
>
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