python监控linux内存并写入mongodb

（需要安装psutil 用来获取服务器资源，以及pymongo驱动）#pip install psutil

#pip install pymongo

#vim memory_monitory.py

文件内容如下

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
import psutil
import socket
import time
from pymongo import MongoClient
mongodbIp = '192.168.200.112'
mongodbPort = 27017
hostname = socket.gethostbyname(socket.gethostname())#获取本地IP地址
def getCurrentTime():
        return time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))
memoryInfo = psutil.virtual_memory()
conn = MongoClient(mongodbIp,mongodbPort)
db = conn.servermonitor
dbset = db.memory
dbset.insert({
        'time':getCurrentTime(),
        'total':memoryInfo.total,
        'available':memoryInfo.available,
        'percent':memoryInfo.percent,
        'used':memoryInfo.used,
        'free':memoryInfo.free,
        'active':memoryInfo.active,
        'inactive':memoryInfo.inactive,
        'buffers':memoryInfo.buffers,
        'cached':memoryInfo.cached})

修改文件可以直接执行

#chmod +x memory_monitor.py

使用crontab 定时执行监控程序

#vim vim /etc/crontab

添加如下内容（每分钟执行一次）

*/1 * * * * root /usr/local/memory_monitor.py

#service crond reload   //重新载入配置

#service crond restart  //重启服务