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[Sean Dague <sean@xxxxxxxxx>]

*** This bug is a duplicate of bug 1241275 ***
    https://bugs.launchpad.net/bugs/1241275

So I think this bug is actually in python-neutronclient, however in
looking at the code I can't see any way that such a thing could happen
as that code path should have been protected from this since -
2013-10-23 commit

commit e49819caf95fc6985036231b1e5717f0ff7b6c61
Author: Drew Thorstensen <thorst@xxxxxxxxxx>
Date:   Wed Oct 23 16:41:45 2013 -0500

    New exception when auth_url is not specified
    
    Certain scenarios into the neutron client will not specify the
    auth_url.  This is typically when a token is specified.  However, when
    the token is expired the neutron client will attempt to refresh the
    token.  Users of this may not have passed in all of the required
    information for this reauthentication to properly occur.
    
    This code fixes an error that occurs in this flow where the auth_url
    (which is None) is appended to another string.  This results in a core
    Python error.
    
    The update will provide a more targetted error message specifying to
    the user that the auth_url needs to be specified.  An associated unit
    test is also included to validate this behavior.
    
    Change-Id: I577ce0c009a9a281acdc238d290a22c5e561ff82
    Closes-Bug: #1241275


** Changed in: nova
       Status: New => Incomplete

** Also affects: python-neutronclient
   Importance: Undecided
       Status: New

** Changed in: nova
       Status: Incomplete => Invalid

** This bug has been marked a duplicate of bug 1241275
   Nova / Neutron Client failing upon re-authentication after token expiration

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https://bugs.launchpad.net/bugs/1358362

Title:
  TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

Status in OpenStack Compute (Nova):
  Invalid
Status in Python client library for Neutron:
  New

Bug description:
  We had several instances go into error state on bootstack with the
  following traceback:

  
  2014-08-17 22:12:37.022 1232 ERROR nova.api.openstack.wsgi [req-068c2700-29a4-46ec-a9f7-9e956c06f3c6 4e68a0dd10e04db5b57c917ca8c521b1 d97d645e7867484b81311b7f9ee2ab15] Exception handling resource: unsupported operand type(s) for +: 'NoneType' and 'str'
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi Traceback (most recent call last):
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line 887, in post_process_extensions
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     **action_args)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/security_groups.py", line 590, in show
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     return self._show(req, resp_obj)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/security_groups.py", line 586, in _show
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     self._extend_servers(req, [resp_obj.obj['server']])
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/security_groups.py", line 550, in _extend_servers
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     servers))
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/nova/network/security_group/neutron_driver.py", line 345, in get_instances_security_groups_bindings
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     ports = self._get_ports_from_server_list(servers, neutron)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/nova/network/security_group/neutron_driver.py", line 304, in _get_ports_from_server_list
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     ports.extend(neutron.list_ports(**search_opts).get('ports'))
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 111, in with_params
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     ret = self.function(instance, *args, **kwargs)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 306, in list_ports
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     **_params)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1250, in list
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     for r in self._pagination(collection, path, **params):
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1263, in _pagination
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     res = self.get(path, params=params)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1236, in get
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     headers=headers, params=params)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1221, in retry_request
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     headers=headers, params=params)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1156, in do_request
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     resp, replybody = self.httpclient.do_request(action, method, body=body)
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/client.py", line 195, in do_request
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     self.authenticate()
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi   File "/usr/lib/python2.7/dist-packages/neutronclient/client.py", line 231, in authenticate
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi     token_url = self.auth_url + "/tokens"
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
  2014-08-17 22:12:37.022 1232 TRACE nova.api.openstack.wsgi
  2014-08-17 22:12:37.024 1232 INFO nova.osapi_compute.wsgi.server [req-068c2700-29a4-46ec-a9f7-9e956c06f3c6 4e68a0dd10e04db5b57c917ca8c521b1 d97d645e7867484b81311b7f9ee2ab15] 159.8.6.135 "GET /v2/d97d645e7867484b81311b7f9ee2ab15/servers/86b370bd-4ae2-4e54-b305-861cca0bf39b HTTP/1.1" status: 400 len: 338 time: 0.0977190

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