python3实现磁盘空间监控

 import os import sys import signal import logging from apscheduler.schedulers.background import BackgroundScheduler from apscheduler.triggers.interval import IntervalTrigger # 开启磁盘空间检测 sched = BackgroundScheduler() # 间隔5分钟开启一个检查 intervalTrigger = IntervalTrigger(minutes=5) # 给检查任务设个id,方便任务的取消 sched.add_job(spaceMonitorJob, trigger=intervalTrigger, id='id_space_monitor') sched.start() # 禁止apscheduler相关信息屏幕输出 logging.getLogger('apscheduler.executors.default').propagate = False

 def spaceMonitorJob(): ''' 当磁盘(切片存储的目录)利用率超过90%,程序退出 :return: ''' try: st = os.statvfs('/') total = st.f_blocks * st.f_frsize used = (st.f_blocks - st.f_bfree) * st.f_frsize except FileNotFoundError: print('check webroot space error.') logger.error('check webroot space error.') # 移除任务，病关闭sched任务 sched.remove_job(job_id='id_space_monitor') sched.shutdown(wait=False) sys.exit(-3) if used / total > 0.9: print('No enough space.') logger.debug('No enough space.') sched.remove_job(job_id='id_space_monitor') sched.shutdown(wait=False) # 杀掉进程 os.killpg(os.getpgid(os.getpid()), signal.SIGKILL) # 退出 exit(-3)