I'm trying to deploy Trove project on my openstack environment by following official guide, and now I'm stuck here. I referenced other people's configurations and tried them but so far they don't work. trove-taskmanager log shows errors like below and don't know how to solve it.. Here's the log and trove-taskmanage.conf. Is there any way to solve this error?

/etc/trove/trove-taskmanager.conf

[DEFAULT]
trove_auth_url = http://10.0.0.1:5000/v2.0
nova_compute_url = http://10.0.0.1:8774/v2
cinder_url = http://control-node:8776/v1
swift_url = http://control-node:8080/v1/AUTH_
neutron_url = http://control-node:9696
notifier_queue_hostname=control-node
nova_proxy_admin_user =admin
nova_proxy_admin_pass =adminpass
nova_proxy_admin_tenant_name =service

/var/log/trove/trove-taskmanager.log

 root@control-node:/home/control-node# tail -n 30  /var/log/trove/trove-taskmanager.log
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/oslo_service/periodic_task.py", line 220, in run_periodic_tasks
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     task(self, context)
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/trove/taskmanager/manager.py", line 407, in publish_exists_event
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     self.admin_context)
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/trove/extensions/mgmt/instances/models.py", line 178, in publish_exist_events
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     notifications = transformer()
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/trove/extensions/mgmt/instances/models.py", line 271, in __call__
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     client=self.nova_client)
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/trove/extensions/mgmt/instances/models.py", line 40, in load_mgmt_instances
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     mgmt_servers = client.servers.list(search_opts={'all_tenants': 1})
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/novaclient/v2/servers.py", line 749, in list
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     "servers")
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/novaclient/base.py", line 242, in _list
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     resp, body = self.api.client.get(url)
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 452, in get
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     return self._cs_request(url, 'GET', **kwargs)
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 408, in _cs_request
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     self.authenticate()
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 565, in authenticate
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task     auth_url = self._v2_auth(auth_url)
2016-08-04 15:06:38.561 5132 ERROR oslo_service.periodic_task   File "/usr/lib/python2.7 ...