Comment 3 for bug 1537857

For reference here's the traceback:

ERROR: No events found for resource XXXX
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cliff/app.py", line 374, in run_subcommand
    result = cmd.run(parsed_args)
  File "/usr/lib/python2.7/site-packages/cliff/command.py", line 54, in run
    self.take_action(parsed_args)
  File "/usr/lib/python2.7/site-packages/tripleoclient/v1/overcloud_update.py", line 72, in take_action
    status, resources = update_manager.get_status()
  File "/usr/lib/python2.7/site-packages/tripleo_common/stack_update.py", line 63, in get_status
    resources = self._resources_by_state()
  File "/usr/lib/python2.7/site-packages/tripleo_common/stack_update.py", line 138, in _resources_by_state
    sort_dir='asc')
  File "/usr/lib/python2.7/site-packages/heatclient/v1/events.py", line 70, in list
    return self._list(url, 'events')
  File "/usr/lib/python2.7/site-packages/heatclient/openstack/common/apiclient/base.py", line 135, in _list
    body = self.client.get(url).json()
  File "/usr/lib/python2.7/site-packages/heatclient/common/http.py", line 278, in get
    return self.client_request("GET", url, **kwargs)
  File "/usr/lib/python2.7/site-packages/heatclient/common/http.py", line 271, in client_request
    resp, body = self.json_request(method, url, **kwargs)
  File "/usr/lib/python2.7/site-packages/heatclient/common/http.py", line 260, in json_request
    resp = self._http_request(url, method, **kwargs)
  File "/usr/lib/python2.7/site-packages/heatclient/common/http.py", line 215, in _http_request
    raise exc.from_response(resp)