啟用 Nginx Status 的設定

要看 Apache Loading 的狀況, 可以看 Apache Status, 但是 Nginx server 的 loading / Status 要怎麼查看呢?

啟用 Nginx Status 的設定步驟

設定參考: Nginx Http Stub Status

1. vim /etc/nginx/sites-available/default

   server {
   ...
       location /nginx_status {
           stub_status on;
           access_log off;
           allow 123.123.123.123; # 允許看到的 IP
           allow 127.0.0.1;
           deny all;
       }
   }

2. /etc/init.d/nginx restart
3. curl http://localhost/nginx_status # 查看 Nginx status

curl nginx_status 的回傳格式如下：

Active connections: 816
server accepts handled requests
 39600484 39600484 24795538
Reading: 0 Writing: 4 Waiting: 794

下述說明摘錄自此篇：Module ngx_http_stub_status_module

• Active connections
  • The current number of active client connections including Waiting connections.
• accepts
  • The total number of accepted client connections.
• handled
  • The total number of handled connections. Generally, the parameter value is the same as accepts unless some resource limits have been reached (for example, the worker_connections limit).
• requests
  • The total number of client requests.
• Reading
  • The current number of connections where nginx is reading the request header.
• Writing
  • The current number of connections where nginx is writing the response back to the client.
• Waiting
  • The current number of idle client connections waiting for a request.

監看 Nginx status 的 Script

監控 Status 的 Script, 讓 Status 比較容易看

1. wget https://raw.githubusercontent.com/magicdrums/Scripts/master/nginxstats.py
2. chmod +x ./nginxstats.py
3. ./nginxstats.py http://localhost/nginx_status
4. 其它參數：nginxstats.py --servers="http://localhost/nginx_status" --time=5

相關網頁

• Monitoring nginx Server Statistics With rrdtool - 狀態畫成圖表 (apt-get install librrds-perl libwww-perl)
• Enable Nginx Status Page