KIP-1227 — Expose Rack ID in MemberDescription and ShareMemberDescription
Accepted Kafka 4.2 ConsumerAdmin
Surfaces the rackId field already present in ConsumerGroupDescribeResponse and ShareGroupDescribeResponse into the MemberDescription and ShareMemberDescription objects returned by AdminClient. The rack ID was silently discarded during response parsing despite being available in the wire protocol, making it impossible to verify rack-aware assignment via the Admin API.
Protocol Impact
Details
| Author | fu.jian |
| Status | Accepted |
| Kafka Version | 4.2 |
| JIRA | KAFKA-19784 |
| Wiki | View on Apache Wiki |
| Created | 2025-10-13 |
| Last Modified | 2025-10-22 |
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