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Posted to jira@kafka.apache.org by "dengziming (Jira)" <ji...@apache.org> on 2021/12/29 02:35:00 UTC

[jira] [Commented] (KAFKA-13569) Is changing a message / field name a breaking change?

    [ https://issues.apache.org/jira/browse/KAFKA-13569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17466288#comment-17466288 ] 

dengziming commented on KAFKA-13569:
------------------------------------

Currently the json schema is indeed not public api, A KIP will be required before we make it so, so w'll try to keep them unchanged but don't ensure that.

> Is changing a message / field name a breaking change?
> -----------------------------------------------------
>
>                 Key: KAFKA-13569
>                 URL: https://issues.apache.org/jira/browse/KAFKA-13569
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Fredrik Arvidsson
>            Priority: Minor
>
> This [commit|[https://github.com/ijuma/kafka/commit/89ee566e466cd58023c6a4cac64893bfcf38b570#diff-fac7080d67da905a80126d58fc1745c9a1409de7ef7d093c2ac66a888b134633]] changed the name of ListOffsetRequest and ListOffsetResponse to ListOffsetsRequest and ListOffsetsResponse. It was merged from this [PR|https://github.com/apache/kafka/pull/9748] stating it is a MINOR change. Are changes to message names (and perhaps field names as well) not considered a breaking change for the protocol schemas?
> I do realize it doesn't change how it is sent over the wire, but it does effect code generators. 



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