chore(controller): remove database conn_max_age

Author: duanhongyi

rootfs/api/settings/production.py

@@ -402,14 +402,13 @@
 
 DRYCC_DATABASE_URL = os.environ.get('DRYCC_DATABASE_URL', 'postgres://postgres:@:5432/drycc')
 DATABASES = {
-    'default': dj_database_url.config(default=DRYCC_DATABASE_URL, conn_max_age=600)
+    'default': dj_database_url.config(default=DRYCC_DATABASE_URL)
 }
 
 # database replica setting
 DRYCC_DATABASE_REPLICA_URL = os.environ.get('DRYCC_DATABASE_REPLICA_URL', None)
 if DRYCC_DATABASE_REPLICA_URL is not None:
-    DATABASES["replica"] = dj_database_url.config(
-        default=DRYCC_DATABASE_REPLICA_URL, conn_max_age=600)
+    DATABASES["replica"] = dj_database_url.config(default=DRYCC_DATABASE_REPLICA_URL)
 
 # database routers
 DATABASE_ROUTERS = ['api.routers.DefaultReplicaRouter', ]