def get_arbiter_broks(self):
        """Get the broks from the arbiters,
        but as the arbiter_broks list can be push by arbiter without Global lock,
        we must protect this with a lock

        TODO: really? check this arbiter behavior!

        :return: None
        """
        with self.arbiter_broks_lock:
            statsmgr.gauge('get-new-broks-count.arbiter', len(self.arbiter_broks))
            # Add the broks to our global list
            self.external_broks.extend(self.arbiter_broks)
            self.arbiter_broks = []
Get the broks from the arbiters,
        but as the arbiter_broks list can be push by arbiter without Global lock,
        we must protect this with a lock

        TODO: really? check this arbiter behavior!

        :return: None