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Ismael Juma commented on KAFKA-18919: ------------------------------------- Why would we document it versus having `KafkaPrincipalBuilder` extend `KafkaPrincipalSerde`? This was not possible while we still supported ZK, but seems like a much better solution now that we no longer support ZK - it's a lot less error prone. > Clarify that KafkaPrincipalBuilder classes must also implement > KafkaPrincipalSerde > ---------------------------------------------------------------------------------- > > Key: KAFKA-18919 > URL: https://issues.apache.org/jira/browse/KAFKA-18919 > Project: Kafka > Issue Type: Sub-task > Reporter: Mickael Maison > Assignee: Szu-Yung Wang > Priority: Major > Fix For: 4.0.0 > > > In KRaft, custom KafkaPrincipalBuilder implementations must also implement > KafkaPrincipalSerde, otherwise brokers are not able to forward requests to > the controller. > So we need to update our docs. > -We should also be able to do some cleanup in the code. For example > RequestContext uses Optional<KafkaPrincipalSerde>, we should be able to > remove Optional since it's now always present.- moved to KAFKA-18922 -- This message was sent by Atlassian Jira (v8.20.10#820010)