Why could not find Zone during floating ip assignment for instance?
edit
2016-08-31 05:50:02.671 6381 INFO designate.policy [req-683fe344-3c5c-46d1-83e3-edb573965077 - - - - -] Policy check succeeded for rule 'all_tenants' on target {}
2016-08-31 05:50:02.672 6381 INFO designate.central.rpcapi [req-683fe344-3c5c-46d1-83e3-edb573965077 - - - - -] get_zone: Calling central's get_zone.
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher [req-683fe344-3c5c-46d1-83e3-edb573965077 - - - - -] Exception during message handling
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher Traceback (most recent call last):
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/notify/dispatcher.py", line 86, in _dispatch_and_handle_error
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher return self._dispatch(incoming)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/notify/dispatcher.py", line 122, in _dispatch
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher ret = self._exec_callback(callback, filtered_messages)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/notify/dispatcher.py", line 169, in _exec_callback
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher messages[0]["metadata"])
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/notify/dispatcher.py", line 129, in _exec_callback
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher ret = callback(*args)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/designate/sink/service.py", line 116, in info
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher handler.process_notification(context, event_type, payload)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/designate/notification_handler/neutron.py", line 76, in process_notification
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher resource_type='floatingip')
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/designate/notification_handler/base.py", line 127, in _create
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher zone = self.get_zone(zone_id)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/designate/notification_handler/base.py", line 65, in get_zone
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher return self.central_api.get_zone(context, zone_id)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/designate/central/rpcapi.py", line 155, in get_zone
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher return self.client.call(context, 'get_zone', zone_id=zone_id)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 413, in call
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher return self.prepare().call(ctxt, method, **kwargs)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 158, in call
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher retry=self.retry)
2016-08-31 05:50:02.685 6381 ERROR oslo_messaging.notify.dispatcher File "/usr ...
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