monit安装配置

环境centos5（32bit），monit-5.17.1，下载地址 https://bitbucket.org/tildeslash/monit/downloads/

1、tar zxvf monit-5.17.1-linux-x86.tar.gz

2、cp monit-5.17.1/conf/monitrc /etc/

3、chmod 0700 /etc/monitrc

4、vi /etc/monitrc

set daemon  30   ##设置30秒检查一次

set logfile /var/log/messages  ##设置日志文件

set httpd port 2812 and
　  use address X.X.X.X
　  allow 0.0.0.0/0.0.0.0 
　  allow admin:123456

设置访问及monit监听端口，允许登录ip，页面登录用户名密码

check system 127.0.0.1
    if loadavg (1min) > 4 then alert
    if loadavg (5min) > 2 then alert
    if cpu usage > 90% for 10 cycles then alert
    if memory usage > 50% then alert
    if swap usage > 25% then alert

设置监控本地CPU内存等信息

check process xinetd with pidfile /var/run/xinetd.pid
    start program = "/etc/init.d/xinetd start"
    stop program = "/etc/init.d/xinetd stop"
    if changed pid then alert

根据PID监控进程，服务死掉后自动重启

check process mysql matching "/usr/bin/mysql"
    start program = "/etc/init.d/mysql start"
    stop program = "/etc/init.d/mysql stop"

check process h5 with MATCHING h5
start program = "/usr/local/bin/h5 > /var/log/h5.log &" with timeout 10 seconds
stop program = "/bin/ps -ef |grep h5|grep -v "grep" |awk '{print $2}'|xargs kill -9" with timeout 10 seconds
if failed port 8081 for 3 cycles then restart

监听进程的另一种方式

还有监听文件等等，就不写了。

主要关注的告警功能

set mailserver smtp.163.com port 25    ##设置邮件服务器及端口，这里使用的163邮件服务器
      username 发件人有限 password “发件人邮箱密码”

set mail-format {
    from: shibo46@163.com
    subject: monit alert -- $EVENT $SERVICE
    message: $EVENT Service $SERVICE
    Date: $DATE
    Action: $ACTION
    Host: $HOST
    Description: $DESCRIPTION
    Your faithful employee,
    Monit
}

#设置邮件发送内容

set alert XXXX@163.com  #设置收件人邮箱，多个收件人写多行

配置好后执行monit程序启动 monit-5.17.1/bin/monit