Comment 1 for bug 1736475

https://logs.rdoproject.org/openstack-periodic/periodic-tripleo-ci-centos-7-multinode-1ctlr-featureset017-pike/d4cead3/subnode-2/var/log/containers/aodh/aodh-notifier.log.txt.gz#_2017-12-06_17_38_24_668

2017-12-06 17:38:24.479 24 INFO aodh.notifier.rest [-] Notifying alarm gabbi-gnocchi-threshold-resource-alarm 4a526356-6b80-4484-a633-76f383e6485f with severity low from ok to insufficient data with action SplitResult(scheme=u'http', netloc=u'site:8000', path=u'/nodata-gnocchi-threshold-resource', query='', fragment='') because No datapoint for granularity 60. request-id: req-a21aa1d5-73a9-4b47-967e-c1631f2b3a1b
2017-12-06 17:38:24.668 24 ERROR aodh.notifier [-] Unable to notify alarm 4a526356-6b80-4484-a633-76f383e6485f: ConnectionError: HTTPConnectionPool(host='site', port=8000): Max retries exceeded with url: /nodata-gnocchi-threshold-resource (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f75f001e1d0>: Failed to establish a new connection: [Errno -2] Name or service not known',))
2017-12-06 17:38:24.668 24 ERROR aodh.notifier Traceback (most recent call last):
2017-12-06 17:38:24.668 24 ERROR aodh.notifier File "/usr/lib/python2.7/site-packages/aodh/notifier/__init__.py", line 139, in _handle_action
2017-12-06 17:38:24.668 24 ERROR aodh.notifier previous, current, reason, reason_data)
2017-12-06 17:38:24.668 24 ERROR aodh.notifier File "/usr/lib/python2.7/site-packages/aodh/notifier/rest.py", line 105, in notify
2017-12-06 17:38:24.668 24 ERROR aodh.notifier resp = session.post(action.geturl(), **kwargs)
2017-12-06 17:38:24.668 24 ERROR aodh.notifier File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 565, in post
2017-12-06 17:38:24.668 24 ERROR aodh.notifier return self.request('POST', url, data=data, json=json, **kwargs)
2017-12-06 17:38:24.668 24 ERROR aodh.notifier File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 518, in request
2017-12-06 17:38:24.668 24 ERROR aodh.notifier resp = self.send(prep, **send_kwargs)
2017-12-06 17:38:24.668 24 ERROR aodh.notifier File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 639, in send
2017-12-06 17:38:24.668 24 ERROR aodh.notifier r = adapter.send(request, **kwargs)
2017-12-06 17:38:24.668 24 ERROR aodh.notifier File "/usr/lib/python2.7/site-packages/requests/adapters.py", line 502, in send
2017-12-06 17:38:24.668 24 ERROR aodh.notifier raise ConnectionError(e, request=request)
2017-12-06 17:38:24.668 24 ERROR aodh.notifier ConnectionError: HTTPConnectionPool(host='site', port=8000): Max retries exceeded with url: /nodata-gnocchi-threshold-resource (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f75f001e1d0>: Failed to establish a new connection: [Errno -2] Name or service not known',))
2017-12-06 17:38:24.668 24 ERROR aodh.notifier