fix

main.py

@@ -64,8 +64,8 @@ FeaturesDict = {
 FeaturesJson = json.dumps(FeaturesDict)
 
 # Thread‑safe health flag
-_health_lock = threading.Lock()
-_is_healthy: bool = True
+#_health_lock = threading.Lock()
+#_is_healthy: bool = True
 
 # ---------------------------------------------------------------------------
 # Redis (same sync client—the API is blocking so FastAPI’s default thread‑pool
@@ -263,7 +263,7 @@ async def doSearch(screen_name: str, client: httpx.AsyncClient) -> Optional[List
         print("Search Error parsing JSON:", r.text)
         return None
 
-    global _is_healthy
+    # global _is_healthy
     _is_healthy = "data" in data
     if not _is_healthy:
         print("Search error:", r.text)
@@ -611,7 +611,7 @@ class HealthyResponse(BaseModel):
     healthy: bool
 
 @app.get("/_healthy", response_model=HealthyResponse)
-async def healthy():
+def healthy():
     # The old behaviour always answered 200 unless the global flag failed.
     # Keeping that.
     return HealthyResponse(healthy=True)