code: def _drop_gracefully(self):
      
      mr_id = self.request.get("mapreduce_id")
      logging.error("Failed to kick off job %s", mr_id)
  
      state = model.MapreduceState.get_by_job_id(mr_id)
      if not self._check_mr_state(state, mr_id):
        return
  
      # Issue abort command just in case there are running tasks.
      config = util.create_datastore_write_config(state.mapreduce_spec)
      model.MapreduceControl.abort(mr_id, config=config)
  
      # Finalize job and invoke callback.
      state.active = False
      state.result_status = model.MapreduceState.RESULT_FAILED
      ControllerCallbackHandler._finalize_job(state.mapreduce_spec, state)
docs: See parent.