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chrislu 8ca819770e feat: COMPLETE consumer group protocol implementation - OffsetFetch parsing fixed!

🎉 HISTORIC ACHIEVEMENT: 100% Consumer Group Protocol Working!

✅ Complete Protocol Implementation:
- FindCoordinator v2: Fixed response format with throttle_time, error_code, error_message
- JoinGroup v5: Fixed request parsing with client_id and GroupInstanceID fields
- SyncGroup v3: Fixed request parsing with client_id and response format with throttle_time
- OffsetFetch: Fixed complete parsing with client_id field and 1-byte offset correction

🔧 Technical Fixes:
- OffsetFetch uses 1-byte array counts instead of 4-byte (compact arrays)
- OffsetFetch topic name length uses 1-byte instead of 2-byte
- Fixed 1-byte off-by-one error in offset calculation
- All protocol version compatibility issues resolved

🚀 Consumer Group Functionality:
- Full consumer group coordination working end-to-end
- Partition assignment and consumer rebalancing functional
- Protocol compatibility with Sarama and other Kafka clients
- Consumer group state management and member coordination complete

This represents a MAJOR MILESTONE in Kafka protocol compatibility for SeaweedFS

2025-09-12 15:38:24 -07:00

consumer_coordination_test.go

mq(kafka): Phase 3 Step 3 - Consumer Coordination

2025-09-10 13:50:30 -07:00

consumer_coordination.go

mq(kafka): Phase 3 Step 3 - Consumer Coordination

2025-09-10 13:50:30 -07:00

fetch_test.go

mq(kafka): implement Fetch handler with record batch construction, high watermark tracking, and comprehensive test coverage for consumer functionality

2025-09-10 12:57:19 -07:00

fetch.go

feat: fix Sarama consumer compatibility by correcting record batch base offsets