openstack host list执行报错
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Unable to establish connection to http://10.0.0.11:8774/v2.1/fff67321f54f44baa7225fce78548b9b/os-hosts: HTTPConnectionPool(host=‘10.0.0.11‘, port=8774): Max retries exceeded with url: /v2.1/fff67321f54f44baa7225fce78548b9b/os-hosts (Caused by NewConnectionError(‘<requests.packages.urllib3.connection.HTTPConnection object at 0x7f880a92ac50>: Failed to establish a new connection: [Errno 111] Connection refused‘,))
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