unable to execute glance command

Issue

• glance command fails with following error:

[stack@instack ~]$ glance --debug image-list
curl -g -i -X GET -H 'Accept-Encoding: gzip, deflate' -H 'Accept: */*' -H 'User-Agent: python-glanceclient' -H 'Connection: keep-alive' -H 'X-Auth-Token: {SHA1}e3f28c677320d8758cb2cb05a9eaa4a52e6ccc47' -H 'Content-Type: application/octet-stream' http://xx.xx.xx.xx:9292/v1/images/detail?sort_key=name&sort_dir=asc&limit=20
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/glanceclient/shell.py", line 644, in main
    args.func(client, args)
  File "/usr/lib/python2.7/site-packages/glanceclient/v1/shell.py", line 116, in do_image_list
    utils.print_list(images, columns)
  File "/usr/lib/python2.7/site-packages/glanceclient/common/utils.py", line 138, in print_list
    for o in objs:
  File "/usr/lib/python2.7/site-packages/glanceclient/v1/images.py", line 249, in list
    for image in paginate(params, return_request_id):
  File "/usr/lib/python2.7/site-packages/glanceclient/v1/images.py", line 233, in paginate
    images, resp = self._list(url, "images")
  File "/usr/lib/python2.7/site-packages/glanceclient/v1/images.py", line 63, in _list
    resp, body = self.client.get(url)
  File "/usr/lib/python2.7/site-packages/glanceclient/common/http.py", line 262, in get
    return self._request('GET', url, **kwargs)
  File "/usr/lib/python2.7/site-packages/glanceclient/common/http.py", line 217, in _request
    raise exc.CommunicationError(message=message)
CommunicationError: Error finding address for http://xx.xx.xx.xx:9292/v1/images/detail?sort_key=name&sort_dir=asc&limit=20: ('Connection aborted.', BadStatusLine("''",))
Error finding address for http://xx.xx.xx.xx:9292/v1/images/detail?sort_key=name&sort_dir=asc&limit=20: ('Connection aborted.', BadStatusLine("''",))