ApiException fetching service list in instance usage
Traceback (most recent call last):
  File "/usr/local/src/horizon/horizon/horizon/dashboards/syspanel/instances/views.py", line 58, in service
    self.service_list = api.service_list(self.request)
  File "/usr/local/src/horizon/horizon/horizon/api/deprecated.py", line 50, in inner
    return f(*args, **kwargs)
  File "/usr/local/src/horizon/horizon/horizon/api/keystone.py", line 269, in service_list
    return [Services(s) for s in admin_api(request).services.list()]
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/admin/services.py", line 14, in list
    return self._list("/admin/services", "services")
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/base.py", line 27, in _list
    resp, body = self.api.connection.get(url)
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/connection.py", line 78, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/connection.py", line 63, in _cs_request
    **kwargs)
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/connection.py", line 48, in request
    raise exceptions.from_response(resp, body)
ApiException: The server has either erred or is incapable of performing the requested operation. (HTTP 500)
ApiException fetching usage list in instance usage on date range "2012-01-01 00:00:00 to 2012-01-13 00:53:47.623274"
Traceback (most recent call last):
  File "/usr/local/src/horizon/horizon/horizon/dashboards/syspanel/instances/views.py", line 83, in usage
    datetime_end)
  File "/usr/local/src/horizon/horizon/horizon/api/deprecated.py", line 50, in inner
    return f(*args, **kwargs)
  File "/usr/local/src/horizon/horizon/horizon/api/nova.py", line 296, in usage_list
    return [Usage(u) for u in extras_api(request).usage.list(start, end)]
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/extras/usage.py", line 12, in list
    return self._list("/extras/usage?start=%s&end=%s" % (start.isoformat(), end.isoformat()), "usage")
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/base.py", line 27, in _list
    resp, body = self.api.connection.get(url)
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/connection.py", line 78, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/connection.py", line 63, in _cs_request
    **kwargs)
  File "/usr/local/src/horizon/.horizon-venv/src/openstackx/openstackx/api/connection.py", line 48, in request
    raise exceptions.from_response(resp, body)
ApiException: The server has either erred or is incapable of performing the requested operation. (HTTP 500)
[13/Jan/2012 01:53:47] "GET /syspanel/ HTTP/1.1" 200 6632