Seen with R3.0.2.x build 12

2016-11-15 11:00:17.383 8576 CRITICAL ceilometer [-] ConnectionFailure: could not connect to 10.204.217.112:27017: [Errno 111] ECONNREFUSED
2016-11-15 11:00:17.383 8576 TRACE ceilometer Traceback (most recent call last):
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/bin/ceilometer-api", line 10, in <module>
2016-11-15 11:00:17.383 8576 TRACE ceilometer     sys.exit(main())
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/cmd/api.py", line 23, in main
2016-11-15 11:00:17.383 8576 TRACE ceilometer     srv = app.build_server()
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/api/app.py", line 157, in build_server
2016-11-15 11:00:17.383 8576 TRACE ceilometer     app = load_app()
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/api/app.py", line 153, in load_app
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return deploy.loadapp("config:" + cfg_file)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return loadobj(APP, uri, name=name, **kw)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return context.create()
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return self.object_type.invoke(self)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 203, in invoke
2016-11-15 11:00:17.383 8576 TRACE ceilometer     app = context.app_context.create()
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return self.object_type.invoke(self)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 146, in invoke
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return fix_call(context.object, context.global_conf, **context.local_conf)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/paste/deploy/util.py", line 55, in fix_call
2016-11-15 11:00:17.383 8576 TRACE ceilometer     val = callable(*args, **kw)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/api/app.py", line 181, in app_factory
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return VersionSelectorApplication()
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/api/app.py", line 104, in __init__
2016-11-15 11:00:17.383 8576 TRACE ceilometer     self.v2 = setup_app(pecan_config=pc)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/api/app.py", line 68, in setup_app
2016-11-15 11:00:17.383 8576 TRACE ceilometer     storage.get_connection_from_config(cfg.CONF, 'metering'),
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/storage/__init__.py", line 86, in get_connection_from_config
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return get_connection(url, namespace)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/storage/__init__.py", line 98, in get_connection
2016-11-15 11:00:17.383 8576 TRACE ceilometer     return mgr.driver(url)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/storage/impl_mongodb.py", line 395, in __init__
2016-11-15 11:00:17.383 8576 TRACE ceilometer     self.conn = self.CONNECTION_POOL.connect(url)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/storage/mongo/utils.py", line 176, in connect
2016-11-15 11:00:17.383 8576 TRACE ceilometer     client = self._mongo_connect(url)
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/ceilometer/storage/mongo/utils.py", line 190, in _mongo_connect
2016-11-15 11:00:17.383 8576 TRACE ceilometer     pymongo.MongoClient(url, safe=True))
2016-11-15 11:00:17.383 8576 TRACE ceilometer   File "/usr/lib/python2.7/dist-packages/pymongo/mongo_client.py", line 352, in __init__
2016-11-15 11:00:17.383 8576 TRACE ceilometer     raise ConnectionFailure(str(e))
2016-11-15 11:00:17.383 8576 TRACE ceilometer ConnectionFailure: could not connect to 10.204.217.112:27017: [Errno 111] ECONNREFUSED
2016-11-15 11:00:17.383 8576 TRACE ceilomete