I run the openstack compute service list with the following error: # openstack compute service list Unable to establish connection to http://controller:8774/v2.1/os-services: HTTPConnectionPool(host='controller', port=8774): Max retries exceeded with url: /v2.1/os-services (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7efdbbee9e50>: Failed to establish a new connection: [Errno 111] \xe6\x8b\x92\xe7\xbb\x9d\xe8\xbf\x9e\xe6\x8e\xa5',)) My port 8774 didn't work and restart the nova- API doesn't work. Is there any way to solve this problem? thank you. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20180323/c5475050/attachment.html>