vamossagar12 commented on code in PR #14432: URL: https://github.com/apache/kafka/pull/14432#discussion_r1383620879
########## group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java: ########## @@ -731,6 +752,36 @@ private void throwIfConsumerGroupIsFull( } } + private void throwIfStaticMemberValidationFails( + String groupId, + String instanceId, + ConsumerGroupMember existingStaticMember, + int memberEpoch, + String memberId + ) { + if (memberEpoch != 0) { + // The member joined with a non-zero epoch but we haven't registered this static member + // This could be an unknown member for the coordinator. + if (existingStaticMember == null) { + throw Errors.UNKNOWN_MEMBER_ID.exception("No existing static member found against instance id: " + instanceId); + } + // There already exists a different member id for the same instance id. + if (!existingStaticMember.memberId().equals(memberId)) { + log.info("Request memberId={} for static member with groupInstanceId={} " + + "is fenced by existing memberId={}", + memberId, instanceId, existingStaticMember.memberId()); + throw Errors.FENCED_INSTANCE_ID.exception(); Review Comment: Added. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org