Lianet Magrans created KAFKA-18116:
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Summary: Admin LeaveGroup fails for static consumer group member
Key: KAFKA-18116
URL: https://issues.apache.org/jira/browse/KAFKA-18116
Project: Kafka
Issue Type: Bug
Components: group-coordinator
Reporter: Lianet Magrans
Assignee: David Jacot
Fix For: 4.0.0
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
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