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https://issues.apache.org/jira/browse/KAFKA-13598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17477963#comment-17477963
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Ismael Juma commented on KAFKA-13598:
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[~showuon] it would be good to determine if this is a 3.1.0 blocker. cc
[~dajac] [~kirktrue]
> producer config didn't throw exception when retries and acks config changed
> ---------------------------------------------------------------------------
>
> Key: KAFKA-13598
> URL: https://issues.apache.org/jira/browse/KAFKA-13598
> Project: Kafka
> Issue Type: Bug
> Components: clients, config
> Affects Versions: 3.1.0, 3.0.0
> Reporter: Luke Chen
> Assignee: Luke Chen
> Priority: Major
> Fix For: 3.0.1
>
>
> In KAFKA-10619, we enabled idempotence by default. But we didn't update the
> config validator, so that we can create producers with `idempotence` enabled
> and `acks` = 1 or `retries` = 0.
>
> Furthermore, I found although we made the `enable.idempotence` default to
> true, there are many places in producer, we still take `enable.idempotence`
> as false if user didn't "explicitly" set the config.
>
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