def scheduler_recycle_expr(self):
        self.log.debug("start checking recyclable experiment ... ")
        for hackathon in self.hackathon_manager.get_recyclable_hackathon_list():
            try:
                # check recycle enabled
                mins = self.hackathon_manager.get_recycle_minutes(hackathon)
                # filter out the experiments that need to be recycled
                exprs = Experiment.objects(create_time__lt=self.util.get_now() - timedelta(minutes=mins),
                                           status=EStatus.RUNNING,
                                           hackathon=hackathon)
                for expr in exprs:
                    self.__recycle_expr(expr)
            except Exception as e:
                self.log.error(e)
recycle experiment according to hackathon basic info on recycle configuration
dataset/ETHPy150Open msopentechcn/open-hackathon/open-hackathon-server/src/hackathon/expr/expr_mgr.py/ExprManager.scheduler_recycle_expr