[KAFKA-14805] KRaft Controller shouldn't allow metadata updates before migration starts

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 3.5.0
• Component/s: kraft
• Assignee: David Arthur
• Reporter: David Arthur
• Created: 13/Mar/23 20:08
• Updated: 06/May/23 15:26
• Resolved: 06/May/23 15:26

Description

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.

Issue Links

• links to: GitHub Pull Request #13407