Sometimes create member is failing with SubnetNotFound

[ank]

Exception:

DEBUG:openstack_dashboard.api.neutron:subnet_get(): subnetid=8a72f5bd-757e-400d-96e1-11dc07b4546a, params={}
Mon Oct 03 12:27:12.119843 2016 :error pid 26958:tid 139894956619520 DEBUG:neutronclient.client:
Mon Oct 03 12:27:12.120062 2016 :error pid 26958:tid 139894956619520 REQ: curl -i https://192.168.20.10:9696//v2.0/subnets/8a72f5bd-757e-400d-96e1-11dc07b4546a.json -X GET -H "User-Agent: python-neutronclient" -H "X-Auth-Token: cb97deecdbdf4f0489ab69f1e963ce7e"
Mon Oct 03 12:27:12.120205 2016 :error pid 26958:tid 139894956619520
Mon Oct 03 12:27:12.191976 2016 :error pid 26958:tid 139894956619520 DEBUG:neutronclient.client:RESP:404
{'date': 'Mon, 03 Oct 2016 21:01:32 GMT', 'content-length': '135', 'content-type': 'application/json; charset=UTF-8', 'x-openstack-request-id': 'req-787fc5e2-e4f0-4f47-b5d5-3231d37d543c'}
{"NeutronError": {"message": "Subnet 8a72f5bd-757e-400d-96e1-11dc07b4546a could not be found", "type": "SubnetNotFound", "detail": ""}}
Mon Oct 03 12:27:12.192301 2016 :error pid 26958:tid 139894956619520
Mon Oct 03 12:27:12.194805 2016 :error pid 26958:tid 139894956619520 DEBUG:neutronclient.v2_0.client:Error message: {"NeutronError": {"message": "Subnet 8a72f5bd-757e-400d-96e1-11dc07b4546a could not be found", "type": "SubnetNotFound", "detail": ""}}
Mon Oct 03 12:27:12.196110 2016 :error pid 26958:tid 139894956619520 ERROR:gbpui.panels.policytargets.workflows:Subnet 8a72f5bd-757e-400d-96e1-11dc07b4546a could not be found
Mon Oct 03 12:27:12.201158 2016 :error pid 26958:tid 139894956619520 ERROR:horizon.exceptions:Not Found: Subnet 8a72f5bd-757e-400d-96e1-11dc07b4546a could not be found
Mon Oct 03 12:27:12.201541 2016 :error pid 26958:tid 139894956619520 Traceback (most recent call last):
Mon Oct 03 12:27:12.201739 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/gbpui/panels/policytargets/workflows.py", line 585, in handle
Mon Oct 03 12:27:12.201846 2016 :error pid 26958:tid 139894956619520 subnet = api.neutron.subnet_get(request, subnet_id)
Mon Oct 03 12:27:12.201928 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/openstack_dashboard/api/neutron.py", line 682, in subnet_get
Mon Oct 03 12:27:12.201937 2016 :error pid 26958:tid 139894956619520 **params).get('subnet')
Mon Oct 03 12:27:12.201941 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 99, in with_params
Mon Oct 03 12:27:12.202014 2016 :error pid 26958:tid 139894956619520 ret = self.function(instance, *args, **kwargs)
Mon Oct 03 12:27:12.203596 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 555, in show_subnet
Mon Oct 03 12:27:12.206656 2016 :error pid 26958:tid 139894956619520 return self.get(self.subnet_path % (subnet), params=_params)
Mon Oct 03 12:27:12.207077 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 290, in get
Mon Oct 03 12:27:12.207299 2016 :error pid 26958:tid 139894956619520 headers=headers, params=params)
Mon Oct 03 12:27:12.207310 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 267, in retry_request
Mon Oct 03 12:27:12.207316 2016 :error pid 26958:tid 139894956619520 headers=headers, params=params)
Mon Oct 03 12:27:12.207320 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 208, in do_request
Mon Oct 03 12:27:12.207324 2016 :error pid 26958:tid 139894956619520 self._handle_fault_response(status_code, replybody)
Mon Oct 03 12:27:12.207328 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 182, in _handle_fault_response
Mon Oct 03 12:27:12.207338 2016 :error pid 26958:tid 139894956619520 exception_handler_v20(status_code, des_error_body)
Mon Oct 03 12:27:12.209139 2016 :error pid 26958:tid 139894956619520 File "/usr/share/cusapp/.venv/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 67, in exception_handler_v20
Mon Oct 03 12:27:12.209202 2016 :error pid 26958:tid 139894956619520 status_code=status_code)
Mon Oct 03 12:27:12.210193 2016 :error pid 26958:tid 139894956619520 NotFound: Subnet 8a72f5bd-757e-400d-96e1-11dc07b4546a could not be found
Mon Oct 03 12:27:12.250103 2016 :error pid 26956:tid 139894931441408 DEBUG:gbpui.client:gbpclient connection created using token "cb97deecdbdf4f0489ab69f1e963ce7e" and url "https://192.168.20.10:9696/"
Mon Oct 03 12:27:12.250840 2016 :error pid 26956:tid 139894931441408 DEBUG:gbpui.client:user_id=c9b1460926494416a767acbbf24af47f, tenant_id=1cab087752e247309573fcb28cfe671b
Mon Oct 03 12:27:12.271191 2016 :error pid 26956:tid 139894931441408 DEBUG:neutronclient.client: