python requests 访问接口报错 [Errno -2] Name or service not known

1.有几个公开的api接口，我是通过requests 访问的频率比较大，因为需要监控状态。而且还是多进程。就会报这个错误

Vm operation - HTTPConnectionPool(host='*', port=80): Max retries exceeded with url: /gic/v1/task_status/?task_id= (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f5e7fb2f410>: Failed to establish a new connection: [Errno -2] Name or service not known',))

查了一些，说在头部信息中加入关闭连接。等等一有没有好的解决方法！