Initial commit - Church Music Database

legacy-site/backend/health_check.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+"""Database Connection Health Monitor"""
+import sys
+import time
+from postgresql_models import engine, SessionLocal, Song, Profile, Plan
+
+def check_connection_pool():
+    """Check database connection pool health"""
+    pool = engine.pool
+    print(f"📊 Connection Pool Status:")
+    print(f"   Size: {pool.size()}")
+    print(f"   Checked out: {pool.checkedout()}")
+    print(f"   Overflow: {pool.overflow()}")
+    print(f"   Checked in: {pool.checkedin()}")
+    return pool.checkedout() < (pool.size() + pool.overflow()) * 0.8
+
+def test_query_performance():
+    """Test basic query performance"""
+    db = SessionLocal()
+    try:
+        start = time.time()
+        count = db.query(Song).count()
+        duration = time.time() - start
+        print(f"\n⚡ Query Performance:")
+        print(f"   Song count: {count}")
+        print(f"   Duration: {duration:.3f}s")
+        return duration < 0.5  # Should be under 500ms
+    finally:
+        db.close()
+
+def main():
+    print("🔍 Database Health Check\n")
+    
+    try:
+        # Test connection
+        conn = engine.connect()
+        conn.close()
+        print("✅ Database connection: OK\n")
+        
+        # Check pool
+        pool_ok = check_connection_pool()
+        
+        # Test queries
+        query_ok = test_query_performance()
+        
+        if pool_ok and query_ok:
+            print("\n✅ All checks passed")
+            return 0
+        else:
+            print("\n⚠️  Some checks failed")
+            return 1
+            
+    except Exception as e:
+        print(f"\n❌ Health check failed: {e}")
+        return 2
+
+if __name__ == "__main__":
+    sys.exit(main())