support multiple instance of vect search

vdb/api.py

@@ -458,23 +458,69 @@ def benchmark():
 
 # ==================== Main ====================
 if __name__ == "__main__":
+    import sys
+
     port = 9999
+    workers = 20  # Number of worker processes
+
+    # Check if running with multiple workers
+    if "--workers" in sys.argv:
+        try:
+            workers_idx = sys.argv.index("--workers")
+            workers = int(sys.argv[workers_idx + 1])
+        except (IndexError, ValueError):
+            print("⚠️  Invalid --workers argument, using default: 20")
+
+    if "--port" in sys.argv:
+        try:
+            port_idx = sys.argv.index("--port")
+            port = int(sys.argv[port_idx + 1])
+        except (IndexError, ValueError):
+            print(f"⚠️  Invalid --port argument, using default: {port}")
+
     print("\n🚀 Starting Sumobot Milvus API server...")
     print(f"📡 Server will be available at: http://0.0.0.0:{port}")
+    print(f"👷 Workers: {workers}")
     print(f"📚 API docs: http://0.0.0.0:{port}/docs")
     print(f"🔍 Health check: http://0.0.0.0:{port}/health")
     print(f"📊 Stats: http://0.0.0.0:{port}/stats")
     print("\n" + "="*70 + "\n")
-    
+
+    # For production with multiple workers, use uvicorn with workers parameter
+    # Each worker will have its own connection to Milvus
     uvicorn.run(
-        app,
+        "api:app",  # Use string import path for workers to work properly
         host="0.0.0.0",
         port=port,
-        log_level="info"
+        workers=workers,
+        log_level="info",
+        access_log=True
     )
 
-# ==================== Test Commands ====================
-f"""
+# ==================== Usage Instructions ====================
+"""
+# ==================== Running the Server ====================
+
+# Run with 20 workers (default)
+python vdb/api.py
+
+# Run with custom number of workers
+python vdb/api.py --workers 10
+
+# Run with custom port
+python vdb/api.py --port 8000 --workers 20
+
+# Alternative: Using Gunicorn for production (install: pip install gunicorn)
+gunicorn vdb.api:app \
+  --workers 20 \
+  --worker-class uvicorn.workers.UvicornWorker \
+  --bind 0.0.0.0:9999 \
+  --timeout 120 \
+  --access-logfile - \
+  --error-logfile -
+
+# ==================== Testing the API ====================
+
 # Health check
 curl http://localhost:9999/health
 
@@ -511,4 +557,14 @@ curl http://localhost:9999/benchmark
 
 # Interactive API docs
 # Open in browser: http://localhost:9999/docs
+
+# ==================== Performance Testing ====================
+
+# Load test with Apache Bench (install: brew install httpd or apt-get install apache2-utils)
+ab -n 10000 -c 100 -T 'application/json' \
+  -p query.json \
+  http://localhost:9999/query
+
+# Where query.json contains:
+# {"state": "AngleToEnemy=7.77, AngleToEnemyScore=0.99, DistanceToEnemyScore=0.76, NearBorderArenaScore=0.81, FacingToArena=-0.99"}
 """