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Posted to dev@kafka.apache.org by "Fredrik Arvidsson (Jira)" <ji...@apache.org> on 2021/12/28 14:07:00 UTC

[jira] [Created] (KAFKA-13570) Fallback of unsupported versions of ApiVersionsRequest and RequestHeader?

Fredrik Arvidsson created KAFKA-13570:
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             Summary: Fallback of unsupported versions of ApiVersionsRequest and RequestHeader?
                 Key: KAFKA-13570
                 URL: https://issues.apache.org/jira/browse/KAFKA-13570
             Project: Kafka
          Issue Type: Improvement
            Reporter: Fredrik Arvidsson


I've gone through the protocol documentation and the source code, but I can't find any explicit documentation stating how clients and brokers are handling the scenario when the client sends higher versions of ApiVersionsRequest and RequestHeader which the broker doesn't understand. I've seen hints in discussions that the broker would fallback to returning version 0 of the ApiVersionsResponse in this scenario.

Are there any documentation that explains these scenarios?



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