[KAFKA-18116] Admin LeaveGroup fails for static consumer group member

• Type: Sub-task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: group-coordinator
• Labels: kip-848
• Assignee: David Jacot
• Reporter: Lianet Magrans
• Created: 28/Nov/24 14:34
• Updated: 05/Dec/24 07:42
• Resolved: 05/Dec/24 07:42

Description

A LeaveGroup request sent by an admin client returns UNKNOWN_MEMBER_ID for a static consumer group member, due to this validation:

https://github.com/apache/kafka/blob/d334f60944fa51622f0035039fa36d6d98405c59/group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java#L6132

This does not allow admin removal of static consumer members. The behaviour is covered in PlaintextAdminIntegrationTest, currently passing for the classic consumer but failing for the new async consumer on this assertion.

https://github.com/apache/kafka/blob/d334f60944fa51622f0035039fa36d6d98405c59/core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala#L2031 

Issue Links

• is required by: KAFKA-17960 PlaintextAdminIntegrationTest.testConsumerGroups fails with CONSUMER group protocol