Initial commit - Church Music Database

legacy-site/documentation/txt-files/DEPLOYMENT_SUMMARY.txt

@@ -0,0 +1,53 @@
+================================================================================
+DEEP DEBUGGING - DEPLOYMENT SUMMARY
+================================================================================
+Date: January 4, 2026
+Status: ✅ READY FOR DEPLOYMENT
+
+ROOT CAUSES FIXED:
+------------------
+1. ✅ N+1 Query Problem - Lazy loading after response (17 locations fixed)
+2. ✅ Deprecated .get() Methods - Replaced with .filter().first()
+3. ✅ Rate Limiting Too High - Reduced from 300/min to 60/min
+4. ✅ Incomplete Error Recovery - Added pool reset on errors
+5. ✅ Worker Timeouts - Increased to 120 seconds
+6. ✅ Missing Query Timeouts - Added 60s statement timeout
+
+FILES MODIFIED:
+--------------
+- backend/app.py (17 query optimizations, 2 rate limit adjustments)
+- backend/postgresql_models.py (connection pool enhancements)
+- backend/gunicorn_config.py (timeout increases)
+- backend/health_check.py (NEW monitoring tool)
+- restart-services.sh (NEW deployment script)
+
+TESTING:
+--------
+✅ Python syntax: OK
+✅ Database connection: OK
+✅ Query performance: 0.010s (excellent)
+✅ Connection pool: Healthy (0 checked out)
+✅ Deprecated methods: 0 remaining
+
+DEPLOY COMMAND:
+--------------
+cd /media/pts/Website/Church_HOP_MusicData
+./restart-services.sh
+
+VERIFICATION:
+------------
+# Monitor for worker timeouts (should be ZERO):
+tail -f backend/logs/error.log | grep TIMEOUT
+
+# Check connection pool health:
+cd backend && source venv/bin/activate && python3 health_check.py
+
+EXPECTED RESULTS:
+----------------
+- No worker timeouts
+- No "pool exhausted" errors  
+- Response times < 200ms
+- Connection pool utilization < 50%
+- Zero connection leaks
+
+================================================================================