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https://issues.apache.org/jira/browse/KAFKA-14805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Arthur resolved KAFKA-14805.
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Resolution: Fixed
> KRaft Controller shouldn't allow metadata updates before migration starts
> -------------------------------------------------------------------------
>
> Key: KAFKA-14805
> URL: https://issues.apache.org/jira/browse/KAFKA-14805
> Project: Kafka
> Issue Type: Sub-task
> Components: kraft
> Reporter: David Arthur
> Assignee: David Arthur
> Priority: Critical
> Fix For: 3.5.0
>
>
> When starting a ZK to KRaft migration, the new KRaft quorum should not accept
> external metadata updates from things like CreateTopics or
> AllocateProducerIds. Having metadata present in the log prior to the
> migration can lead to undefined state, which is not great.
> This is currently causing test failures on trunk because some producer is
> allocating a producer ID between the time the KRaft quorum starts and the
> migration starts.
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