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https://issues.apache.org/jira/browse/KAFKA-15207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17979918#comment-17979918
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Abhi commented on KAFKA-15207:
------------------------------

Please update if this ticket is resolved.

> ProducerIdManager#generateProducerId() should return different error code for 
> newer clients
> -------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-15207
>                 URL: https://issues.apache.org/jira/browse/KAFKA-15207
>             Project: Kafka
>          Issue Type: Task
>            Reporter: Jeff Kim
>            Priority: Major
>
> [https://github.com/apache/kafka/pull/13267] made changes to 
> ProducerIdManager that does not block request handler threads while waiting 
> for a new producer id block. Instead of blocking, we return 
> COORDINATOR_LOAD_IN_PROGRESS.
>  
> We return this rather than REQUEST_TIMED_OUT since older clients treat the 
> error as fatal when it should be retriable like COORDINATOR_LOAD_IN_PROGRESS.
>  
> For newer clients, we should return an error that is more aligned with what 
> the client experiences.



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