Hi I am accessing the nova api using the gophercloud SDK <https://github.com/rackspace/gophercloud> https://github.com/rackspace/gophercloud I am running Openstack Newton installed with Openstack Ansible I am accessing the "List Servers" call of the nova Api with the Changes-Since parameters for efficient polling <https://developer.openstack.org/api-guide/compute/polling_changes-since_par ameter.html> https://developer.openstack.org/api-guide/compute/polling_changes-since_para meter.html However, the API is not working as I expected. When I stop or start a server instance, the API successfully detects the change in the server state and returns the server in the next call to ListServers with the Changes-Since parameter, as expected. But when I attach a new security group to the server, the API does not detect any change in the state of the server and does not return the server in the next call to ListServers with the Changes-Since parameter. I would expect that changing the list of security groups attached to a server would be considered a change in the server state and reported when using the Changes-Since parameter, but that is not the behavior that I am seeing. Can someone please let me know if this is a known bug? Thanks Renato -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20170626/4e6c27c3/attachment.html>