Munin alert
Munin alert支持几种方式
Email alert:
但是这种在我们天朝下面是基本不能用的，所以需要自己去写脚本发送email
Syslog Alert:
To send syslog message with priority use a command such as this:
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contact.syslog.command logger -p user.crit -t "Munin-Alert"
Alerts to or through external scripts:
To run a script (in this example, ‘script’) from Munin use a command such as this in your munin.conf. Make sure that:
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There is NO space between the ‘>’ and the first ‘script’
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‘script’ is listed twice and
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The munin user can find the script – by either using an absolute path or putting the script somewhere on the PATH – and has permission to execute the script.
Code:
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contact.person.command >script script
| This syntax also will work (this time, it doesn’t matter if there is a space between ‘ | ’ and the first ‘script’ … otherwise, all the above recommendations apply): |
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contact.person.command | script script
我们上面所说的自己写脚本发送email就是通过这种方式详细可以参考我写的一个脚本：
Test & Debug
根据上面Munin-Alert-Email README 使用脚本，然后接下来就是测试和Debug，Munin在跑munin-plugins时候，用的是 root用户，而在执行alert时候，是munin用户，这样，你就需要保证你执行脚本在munin下是可以执行的
- /var/log/munin/munin-limits.log: 查看每次limit log
- /var/lib/munin/limits：每次limits输出
- /usr/share/munin/munin-limits –debug： debug limits，如果邮件无法发送，你可以尝试下这个debug，如果出现lock，这个时候你就需要把对应在跑的 munin-limits 给 kill 掉
最后，就等待5分钟或者Debug limit之后，就可以接受到邮件