[fix] Remove duplicate creations

api/app/tasks.py

@@ -101,10 +101,11 @@ def get_sync_redis_client() -> Optional[redis.StrictRedis]:
 
 
 def set_asyncio_event_loop():
-    """Set the asyncio event loop for the current thread.
+    """Ensure an open asyncio event loop exists for the current thread.
 
-    Always creates a fresh event loop to avoid 'Event loop is closed' errors
-    caused by stale httpx.AsyncClient objects from previous task runs.
+    Reuses the existing event loop if one is available and still open.
+    Creates and installs a new event loop only when the current one is
+    closed or missing (e.g. after ``_shutdown_loop_gracefully``).
     """
     try:
         loop = asyncio.get_event_loop()
@@ -122,6 +123,9 @@ def _shutdown_loop_gracefully(loop: asyncio.AbstractEventLoop):
 
     This prevents 'RuntimeError: Event loop is closed' from httpx.AsyncClient.__del__
     by giving pending aclose() coroutines a chance to run before the loop is discarded.
+
+    Note: This only tears down the given loop. Callers that need a fresh event
+    loop afterwards should use ``set_asyncio_event_loop()`` explicitly.
     """
     try:
         # Cancel and collect all remaining tasks
@@ -136,9 +140,6 @@ def _shutdown_loop_gracefully(loop: asyncio.AbstractEventLoop):
         pass
     finally:
         loop.close()
-        # Set a new event loop so subsequent tasks get a fresh one
-        new_loop = asyncio.new_event_loop()
-        asyncio.set_event_loop(new_loop)
 
 
 @celery_app.task(name="tasks.process_item")