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https://issues.apache.org/jira/browse/KAFKA-15799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Arthur updated KAFKA-15799:
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Fix Version/s: 3.7.0
> ZK brokers incorrectly handle KRaft metadata snapshots
> ------------------------------------------------------
>
> Key: KAFKA-15799
> URL: https://issues.apache.org/jira/browse/KAFKA-15799
> Project: Kafka
> Issue Type: Bug
> Reporter: David Arthur
> Assignee: David Arthur
> Priority: Major
> Fix For: 3.7.0, 3.6.1
>
>
> While working on the fix for KAFKA-15605, I noticed that ZK brokers are
> unconditionally merging data from UpdateMetadataRequest with their existing
> MetadataCache. This is not the correct behavior when handling a metadata
> snapshot from the KRaft controller.
> For example, if a topic was deleted in KRaft and not transmitted as part of a
> delta update (e.g., during a failover) then the ZK brokers will never remove
> the topic from their cache (until they restart and rebuild their cache).
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