update thread_num: 2->1

rov-sever/server/rov-server-update.py

@@ -243,7 +243,7 @@ if __name__ == '__main__':
     success_count = 0
     threads = []
     # 线程数
-    thread_num = 2
+    thread_num = 1
     # 获取slb下所有服务器信息
     res = getInstanceId(slb_id_1)
     # slb下服务器总数