Comment 4 for bug 1541733

horizon logs:
2016-02-25 13:44:55,384 4364 ERROR horizon.exceptions Not Found: Not Found (HTTP 404)
Traceback (most recent call last):
  File "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../../openstack_dashboard/dashboards/project/volumes/tabs.py", line 42, in _get_volumes
    sort_dir=sort_dir, paginate=True)
  File "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../../openstack_dashboard/api/cinder.py", line 225, in volume_list_paged
    sort=sort):
  File "/usr/lib/python2.7/dist-packages/cinderclient/v2/volumes.py", line 375, in list
    "volumes", limit=limit)
  File "/usr/lib/python2.7/dist-packages/cinderclient/base.py", line 110, in _list
    limit, items)
  File "/usr/lib/python2.7/dist-packages/cinderclient/base.py", line 65, in _list
    resp, body = self.api.client.get(url)
  File "/usr/lib/python2.7/dist-packages/cinderclient/client.py", line 303, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.7/dist-packages/cinderclient/client.py", line 266, in _cs_request
    **kwargs)
  File "/usr/lib/python2.7/dist-packages/cinderclient/client.py", line 249, in request
    raise exceptions.from_response(resp, body)
NotFound: Not Found (HTTP 404)