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chrislu 89a05f8c37 mq(kafka): Fix JoinGroup v2 throttle_time_ms placement

🎯 PROTOCOL FORMAT CORRECTION

✅ THROTTLE_TIME_MS PLACEMENT FIXED:
- Moved throttle_time_ms to correct position after correlation_id ✅
- Removed duplicate throttle_time at end of response ✅
- JoinGroup response size: 136 bytes (was 140 with duplicate) ✅

🔍 CURRENT STATUS:
- FindCoordinator v0: ✅ Working perfectly
- JoinGroup v2: ✅ Parsing and response generation working
- Issue: kafka-go still retries JoinGroup, never calls SyncGroup ❌

📊 EVIDENCE:
- 'DEBUG: JoinGroup response hex dump (136 bytes): 0000000200000000...'
- Response format now matches Kafka v2 specification
- Client still disconnects after JoinGroup response

NEXT: Investigate member_metadata format - likely kafka-go expects
specific subscription metadata format in JoinGroup response members array.

2025-09-10 17:36:16 -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

mq(kafka): Add comprehensive protocol compatibility review and TODOs