Linux/muninインストール

muninインストール準備

# yum install munin --enablerepo=epel

munin管理画面を表示

apacheの場合

# vi /etc/httpd/conf.d/munin.conf

ngxinの場合

# vi /etc/nginx/conf.d/munin.localhost.conf
server {
    listen       80;
    server_name  munin.localhost;
    location / {
        alias /var/www/html/munin/;
    }
    location /nginx_status {
        stub_status on;
        access_log off;
    }
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}

muninの設定

# vi /etc/munin/munin-node.conf

監視されるサーバの場合は監視元サーバのIPを追加

allow ^192\.168\.0\.2$

munin起動

service munin-node start

監視されるmuninのcron設定

# vi /etc/cron.d/munin

nginxの場合

php-fpmで使えるように

cd /usr/share/munin/plugins
sudo git clone git://github.com/tjstein/php5-fpm-munin-plugins.git
sudo chmod +x php5-fpm-munin-plugins/phpfpm_*
cd /etc/munin/plugins/
ln -s /usr/share/munin/plugins/php5-fpm-munin-plugins/phpfpm_average phpfpm_average
ln -s /usr/share/munin/plugins/php5-fpm-munin-plugins/phpfpm_connections phpfpm_connections
ln -s /usr/share/munin/plugins/php5-fpm-munin-plugins/phpfpm_memory phpfpm_memory
ln -s /usr/share/munin/plugins/php5-fpm-munin-plugins/phpfpm_processes phpfpm_processes
ln -s /usr/share/munin/plugins/php5-fpm-munin-plugins/phpfpm_status phpfpm_status

nginxのstatusにアクセスできるように

# vi /etc/php-fpm.d/www.conf
;pm.status_path = /status
pm.status_path = /phpfpm_status

vi /etc/nginx/conf.d/default.conf

server {
   listen       80;
   server_name  localhost;
   location /nginx_status {
       stub_status on;
       access_log off;
       allow 127.0.0.1;
       deny all;
   }
   location /phpfpm_status {
       include fastcgi_params;
       fastcgi_pass localhost:9000;
       fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
       allow 127.0.0.1;
       deny all;
   }
 }

以下で動作確認

 wget http://localhost/phpfpm_status

監視対象サービス追加

vi /etc/munin/plugin-conf.d/munin-node
[nginx*]
env.url http://localhost/nginx_status
[phpfpm*]
env.url http://localhost/phpfpm_status
env.phpbin php-fpm

監視稼働確認

/usr/sbin/munin-run phpfpm_average

監視サーバ追加

vi /etc/munin/munin.conf

[localhost]
   address 127.0.0.1
   use_node_name yes
[test1.example.com]
   address 192.168.xxx.xxx
   use_node_name yes

参考

https://tech.basicinc.jp/articles/8 nginx + PHP-FPMをmuninでリソース監視する