[jira] [Resolved] (KAFKA-19228) `kafka-storage format` should not support explicitly setting kraft.version feature level

["Kevin Wu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-19228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kevin Wu resolved KAFKA-19228.
------------------------------
    Resolution: Won't Fix

Closing with won't fix, since although the current behavior is undesirable UX, this fix would be a breaking change.

 

Since verifying that setting `–feature=kraft.version=X` alongside any of `–standalone, --initial-controllers, --no-initial-controllers` does not write anything to `bootstrap.checkpoint` or the `0-0.checkpoint` files, the current behavior is consistent (i.e. the metadata log is always formatted correctly.

> `kafka-storage format` should not support explicitly setting kraft.version feature level
> ----------------------------------------------------------------------------------------
>
>                 Key: KAFKA-19228
>                 URL: https://issues.apache.org/jira/browse/KAFKA-19228
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Kevin Wu
>            Assignee: Kevin Wu
>            Priority: Major
>
> When formatting, explicitly setting the kraft.version feature level with --feature kraft.version=X should not be supported. Instead, this feature's level should be inferred from the presence/absence of the following flags: --standalone, --initial-controllers, --no-initial-controllers.
>  * When --standalone or --initial-controllers is specified, this node is using kraft.version=1, and will write a bootstrap snapshot with the KRaft version and voter set control records.
>  * When --no-initial-controllers is specified, the feature level will end up unset because it is not used to write the bootstrap snapshot like with --initial-controllers and --standalone. Instead, the node will default to kraft.version 0 and potentially discover a higher feature level by fetching the log.
>  * If none of these flags are specified, the static config controller.quorum.voters must be defined.



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