Starts the partition service.

def start(self):
        """
        Starts the partition service.
        """
        self.logger.debug("Starting partition service", extra=self._logger_extras)

        def partition_updater():
            self._do_refresh()
            self.timer = self._client.reactor.add_timer(PARTITION_UPDATE_INTERVAL, partition_updater)

        self.timer = self._client.reactor.add_timer(PARTITION_UPDATE_INTERVAL, partition_updater)