deployment 21

backend/celery_app.py

@@ -1,6 +1,7 @@
 """Celery application configuration."""
 import sys
 from pathlib import Path
+import os
 
 # Ensure backend directory is in Python path for imports
 backend_dir = Path(__file__).parent.resolve()
@@ -13,13 +14,15 @@ from app_config import settings
 
 # Determine broker and backend based on configuration
 if settings.use_fake_redis:
-    # Use in-memory broker for development/HF Spaces
+    # Use eager mode for HF Spaces - execute tasks synchronously
     broker_url = "memory://"
     backend_url = "cache+memory://"
+    task_always_eager = True
 else:
     # Use Redis for production
     broker_url = settings.redis_url
     backend_url = settings.redis_url
+    task_always_eager = False
 
 # Initialize Celery
 celery_app = Celery(
@@ -35,6 +38,11 @@ celery_app.conf.update(
     result_serializer="json",
     timezone="UTC",
     enable_utc=True,
+    
+    # Eager mode for HF Spaces (synchronous execution)
+    task_always_eager=task_always_eager,
+    task_eager_propagates=True,
+    enable_utc=True,
 
     # Task settings
     task_track_started=True,

start-backend.sh

@@ -1,22 +1,28 @@
 #!/bin/bash
 set -e
 
-echo "� Starting Rescored backend..."
+echo "Starting Rescored backend..."
 
 cd /app/backend
 
-# Start Celery worker in the background
-echo "Starting Celery worker..."
-celery -A celery_app worker --loglevel=info --concurrency=1 &
-CELERY_PID=$!
-
-# Give Celery a moment to start
-sleep 2
-
-# Start FastAPI server in the foreground
-echo "Starting FastAPI server on port ${API_PORT}..."
-python -u main.py &
-API_PID=$!
-
-# Wait for both processes
-wait $CELERY_PID $API_PID
+# Check if using fake Redis (eager mode - no worker needed)
+if [ "$USE_FAKE_REDIS" = "true" ]; then
+    echo "Using eager mode (synchronous task execution)"
+    exec python -u main.py
+else
+    # Production mode - start Celery worker in background
+    echo "Starting Celery worker..."
+    celery -A celery_app worker --loglevel=info --concurrency=1 &
+    CELERY_PID=$!
+    
+    # Give Celery a moment to start
+    sleep 2
+    
+    # Start FastAPI server
+    echo "Starting FastAPI server on port ${API_PORT}..."
+    python -u main.py &
+    API_PID=$!
+    
+    # Wait for both processes
+    wait $CELERY_PID $API_PID
+fi