MongoDB Storage Driver Doesn't Use Port Option

I'll just put the source in here:

"""
    @property
    def db(self):
        """Property for lazy instantiation of mongodb's database."""
        if self._database is None:
            if options.CFG.uri and 'replicaSet' in options.CFG.uri:
                conn = pymongo.MongoReplicaSetClient(options.CFG.uri)
            else:
                conn = pymongo.MongoClient(options.CFG.uri)

            self._database = conn[options.CFG.database]

        return self._database
"""

Repro: start a mongodb database server on a non-default port and watch marconi crash, regardless of the config file options.