Nagios监控memcached

Nagios的check_memcached

这个插件可以装在memcached服务器上,也可以装在Nagios服务器上,我是直接装在Nagios服务器上这样方便一些.

下载地址：
http://search.cpan.org/CPAN/authors/id/Z/ZI/ZIGOROU/Nagios-Plugins-Memcached-0.02.tar.gz
这个脚本是用perl编的，所以你要先确保自己的机器里面是否有perl环境.

安装方法:

#cd /usr/local/src/tarbag
#wget http://search.cpan.org/CPAN/authors/id/Z/ZI/ZIGOROU/Nagios-Plugins-Memcached-0.02.tar.gz #tar xzvf Nagios-Plugins-Memcached-0.02.tar.gz -C ../software
#cd ../software/Nagios-Plugins-Memcached-0.02
#perl Makefile.PL

执行后会出现一些提示让你选择,一路回车

#make

这时会下载一些运行时需要的东西

#make install

默认会把check_memcached文件放到/usr/bin/check_memcached

做个软链接抟到Nagios
libexec目录下.

ln -s /usr/bin/check_memcached  /usr/local/nagios/libexec/

修改nagios commands.cfg配置文件.加上这些内容:

#Memcached
### check response time(msec) for memcached
define command {
command_name check_memcached_response
command_line /usr/local/nagios/libexec/check_memcached -H $HOSTADDRESS$:12000 -w $ARG1$ -c $ARG2$
}

### check cache size ratio(bytes/limit_maxbytes[%]) for memcached
define command {
command_name check_memcached_size
command_line /usr/local/nagios/libexec/check_memcached -H $HOSTADDRESS$:12000 --size-warning $ARG1$ --size-critical $ARG2$
}

### check cache hit ratio(get_hits/cmd_get[%]) for memcached
define command {
command_name check_memcached_hit
command_line /usr/local/nagios/libexec/check_memcached -H $HOSTADDRESS$:12000 --hit-warning $ARG1$ --hit-critical $ARG2$
}

12000端口是我的memcached端口.
然后在memcached主机的cfg配置文件里加上:

#Memcached
define service{
use                                local-service ;                         Name of service template to use
host_name                          10.0.0.204
service_description                Memcached_response
check_command                      check_memcached_response!300!500
}
define service{
use                             local-service ;           Name of service template to use
host_name                       10.0.0.204
service_description             Memcached_size
check_command                   check_memcached_size!90!95
}
define service{
use                             local-service ;                 Name of service template to use
host_name                       10.0.0.204
service_description             Memcached_hit
check_command                   check_memcached_hit!10!5
}

最后重启下Nagios. 搞定!