python 自定义守护线程

code monitor.py

#!/usr/bin/env python
# coding:utf-8

import os
import logging

#日志格式
LOG_FORMAT = "%(asctime)s - %(levelname)s - %(message)s"
logging.basicConfig(filename='monitor.log', level=logging.DEBUG, format=LOG_FORMAT)
process = '/home/work/monitor/run.lock'
#需要监控的服务
servers = ['bill_data_cur/','bill_data_cur_new']
#服务脚本目录
path = '/home/proxy/bin/'
for server in servers:
    os.system('jps -m|grep %s > %s'%(server,process))
    if not (os.path.getsize(process)):
         os.system("sh %s%s.sh"%(path,server.replace("/","")))
logging.info("checking...")

通过执行shell jps -m|grep 输出文本的形式确定程序是否运行
如果未运行将程序启动

crontab -e 调度

0 * * * * python /home/work/monitor/monitor.py

通过crontab每小时调度一次

cron 日志查看地址: /var/log/cron