使用Nagios

zhk2369

　　监控memcache的运行状态有好几种实现方式。在这里我只介绍用Nagios-Plugins-Memcached 进行监控memcached。
该插件是用prel 进行开发的所以系统上必须要安装Perl 环境，并且同时保证服务器能够上网， cpanplugin 安装
CPAN的使用
默认情况下使用cpan命令安装时，如果依赖其他的软件包时cpan就会停止，但是如果使用CPANPLUS来进行安装时，就能能自动安装依赖项的模板
#cpan CPANPLUS
   Are you ready for manual configuration? [yes]
   CPAN build and cache directory? [/root/.cpan]
   Cache size for build directory (in MB)? [10]
   Perform cache scanning (atstart or never)? [atstart]
   Cache metadata (yes/no)? [yes]
   Your terminal expects ISO-8859-1 (yes/no)? [yes]
   File to save your history? [/root/.cpan/histfile]
   Number of lines to save? [100]
   Policy on building prerequisites (follow, ask or ignore)? [ask]
   Where is your gzip program? [/bin/gzip]
Where is your tar program? [/bin/tar]
Where is your unzip program? [/usr/bin/unzip]
Where is your make program? [/usr/bin/make]
Where is your links program? [/usr/bin/links]
Where is your wget program? [/usr/bin/wget]
Warning: ncftpget not found in PATH
Where is your ncftpget program? []
Warning: ncftp not found in PATH
Where is your ncftp program? []
Where is your ftp program? [/usr/kerberos/bin/ftp]
Where is your gpg program? [/usr/bin/gpg]
What is your favorite pager program? [/usr/bin/less]
What is your favorite shell? [/bin/bash]
Select your continent (or several nearby continents) [] 2 注： 这是选择地区
Select your country (or several nearby countries) [] 1 注：这选国家
2 首先下载Nagios-Plugins-Memcached-0.02.tar.gz，解压
wget http://search.cpan.org/CPAN/authors/id/Z/ZI/ZIGOROU/Nagios-Plugins-Memcached-0.02.tar.gz
#tar xvf Nagios-Plugins-Memcached-0.02.tar.gz
3 安装
#cd Nagios-Plugins-Memcached-0.0.2
   #perl Makefile.pl
    *** Module::AutoInstall version 1.03
*** Checking for Perl dependencies...
[Core Features]
- Carp::Clan       ...missing.
- Cache::Memcached ...missing.
- FindBin          ...loaded. (1.47)
- Nagios::Plugin   ...missing.
- Time::HiRes      ...loaded. (1.9717)
==> Auto-install the 3 mandatory module(s) from CPAN? [y]
#make install
4 查找安装后的check_memcached 的插件，并把该插件拷贝到nagios的插件的目录下面
   #whereis check_memcached
   #cp /usr/bin/check_memcached /usr/local/nagios/libexec
   #chmod +x /usr/local/nagios/libexec/check_memcached
  5 当然在用nagios 进行监控memcached 的方法方法分别是
   首先定命令在nagios 命令文件command.cfg后面添加一下
define command{
        command_name check_memcached_response
        command_line $USER1$/check_memcached -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$
}
define command{
        command_name check_memcached_size
        command_line $USER1$/check_memcached -H $HOSTADDRESS$ --size-warning $ARG1$ --size-critical $ARG2$
}
define command{
        command_name check_memcached_hit
        command_line $USER1$/check_memcached -H $HOSTADDRESS$ --hit-warning $ARG1$ --hit-critical $ARG2$
}
6 定义主机
     
define host{
          use       linux-box-remote
           host_name mysqllinux186
           alias      Memcache
           address   192.168.1.186
            }
define service{
          use                 generic-service
          host_name          mysqllinux186
          service_description Memcached
          check_command      check_memcached_response!30!40
          }
define service{
          use                 generic-service
          host_name          mysqllinux186
          service_description Memcached_size
          check_command      check_memcached_size!30!40
          }
define service{
          use                 generic-service
          host_name         mysqllinux186
          service_description Memcached_hit
          check_command      check_memcached_hit!40!30
          }
#/usr/local/nagios/bin/nagio -v /usr/local/nagios/etc/nagios.cfg
检测配置文件是不是有错误，如果没有错误，并重启nagios