def advance_for_next_slice(self):
    self.slice_id += 1
    self.slice_start_time = None
    self.slice_request_id = None
    self.slice_retries = 0
Advance self for next slice.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/mapreduce/model.py/ShardState.advance_for_next_slice