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https://issues.apache.org/jira/browse/KAFKA-10523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17623898#comment-17623898
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Francesco Guardiani commented on KAFKA-10523:
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I opened a similar issue in librdkafka:
https://github.com/edenhill/librdkafka/discussions/4029
> Allow to provide producer ID
> ----------------------------
>
> Key: KAFKA-10523
> URL: https://issues.apache.org/jira/browse/KAFKA-10523
> Project: Kafka
> Issue Type: New Feature
> Reporter: Luigi Berrettini
> Priority: Minor
>
> I read about the implementation of idempotence and saw that it is only
> guaranteed within a producer session, since it depends on a PID reassigned
> every time the producer (re)start.
> The PID is probably assigne relying on ZooKeeper, but I was wondering if it
> could be possible to support providing a PID externally to gain idempotence
> across restrarts e.g. having the producing application read the PID from a
> configuration file.
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