Unhandled python exception in read callback: UnboundLocalError: local variable 'stats' referenced before assignment

[ssbarnea]

./collectd -T
openstack-keystone: failed to get stats :: Authorization Failed: The resource could not be found. (HTTP 404) (Request-ID: req-56dd66a4-b85b-446c-8f29-05e6a622f2eb) :: Traceback (most recent call last):
  File "/home/fedora/collectd-openstack/plugins/base.py", line 138, in read_callback
    stats = self.get_stats()
  File "/home/fedora/collectd-openstack/plugins/keystone_plugin.py", line 45, in get_stats
    keystone = self.get_keystone()
  File "/home/fedora/collectd-openstack/plugins/base.py", line 50, in get_keystone
    tenant_name=self.tenant, auth_url=self.auth_url)
  File "/usr/lib/python2.7/site-packages/keystoneclient/v2_0/client.py", line 152, in __init__
    self.authenticate()
  File "/usr/lib/python2.7/site-packages/keystoneclient/utils.py", line 318, in inner
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/httpclient.py", line 503, in authenticate
    resp = self.get_raw_token_from_identity_service(**kwargs)
  File "/usr/lib/python2.7/site-packages/keysto
Unhandled python exception in read callback: UnboundLocalError: local variable 'stats' referenced before assignment
Traceback (most recent call last):
  File "/home/fedora/collectd-openstack/plugins/keystone_plugin.py", line 78, in read_callback
    plugin.read_callback()
  File "/home/fedora/collectd-openstack/plugins/base.py", line 144, in read_callback
    self.dispatch(stats)
UnboundLocalError: local variable 'stats' referenced before assignment
read-function of plugin `python.keystone_plugin' failed.
openstack-nova: failed to get stats :: Authorization Failed: The resource could not be found. (HTTP 404) (Request-ID: req-8a5e2dbc-98cf-41b0-8442-f1c0c7f41a47) :: Traceback (most recent call last):
  File "/home/fedora/collectd-openstack/plugins/base.py", line 138, in read_callback
    stats = self.get_stats()
  File "/home/fedora/collectd-openstack/plugins/nova_plugin.py", line 48, in get_stats
    keystone = self.get_keystone()
  File "/home/fedora/collectd-openstack/plugins/base.py", line 50, in get_keystone
    tenant_name=self.tenant, auth_url=self.auth_url)
  File "/usr/lib/python2.7/site-packages/keystoneclient/v2_0/client.py", line 152, in __init__
    self.authenticate()
  File "/usr/lib/python2.7/site-packages/keystoneclient/utils.py", line 318, in inner
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/httpclient.py", line 503, in authenticate
    resp = self.get_raw_token_from_identity_service(**kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient
Unhandled python exception in read callback: UnboundLocalError: local variable 'stats' referenced before assignment
Traceback (most recent call last):
  File "/home/fedora/collectd-openstack/plugins/nova_plugin.py", line 113, in read_callback
    plugin.read_callback()
  File "/home/fedora/collectd-openstack/plugins/base.py", line 144, in read_callback
    self.dispatch(stats)
UnboundLocalError: local variable 'stats' referenced before assignment

[mcronce]

I am seeing exactly this problem on Pike