Use default db when retrieving active agents in Agent.next_tasks

arkindex/ponos/models.py

@@ -212,9 +212,10 @@ class Agent(models.Model):
         if not pending_tasks.exists():
             return []
 
-        # Retrieve active agents within the same farm
+        # Retrieve active agents within the same farm, using the default database to avoid a stale-read if there are
+        # no active agents, then an agent becomes active and asks for its actions
         active_agents = (
-            Agent.objects
+            Agent.objects.using('default')
             .filter(
                 last_ping__gte=timezone.now() - AGENT_TIMEOUT,
                 farm_id=self.farm_id,