'Override min_part_hours by marking all partitions as having been moved
255 hours ago and last move epoch to \'the beginning of time\'. This can
be used to force a full rebalance on the next call to rebalance.'

def pretend_min_part_hours_passed(self):

    self._last_part_moves_epoch = 0
    if (not self._last_part_moves):
        return
    for part in range(self.parts):
        self._last_part_moves[part] = 255
