def stop_job(self, job_name):
        job_master = self.job_tracker.get_job_master(job_name)
        stage = Stage(job_master.workers, 'stop_job')
        stage.barrier(True, job_name)
        
        stage = Stage(job_master.workers, 'clear_job')
        stage.barrier(True, job_name)
        
        self.job_tracker.remove_job(job_name)

        self.logger.debug(job_name % 'stop job: %s')
dataset/ETHPy150Open chineking/cola/cola/cluster/master.py/Master.stop_job/swapped operands of `%`