Detailed explanation of real-time viewing and monitoring of PHP-FPM running status

Foreword

Everyone knows that PHP-FPM has a built-in status page. After opening it, you can view the detailed running status of PHP-FPM, which will help PHP-FPM optimization.

Open php-fpm.conf, configure php-fpm status page options

pm.status_path = /phpfpm_status

Configure nginx.conf, add accessible server

server {
  listen 80;
  server_name 127.0.0.1;
  location /phpfpm_status {
    fastcgi_pass 127.0.0.1:9000;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
  }
}

Restart or reload nginx, and php-fpm

service php-fpm restart
service nginx restart

Browser access results:

You can view the php-fpm status output format with different parameters:

http://www.foo.bar/status #默认纯文本
http://www.foo.bar/status?json #json格式
http://www.foo.bar/status?html #html格式
http://www.foo.bar/status?xml #xml格式
  
#full参数可查看进程详细信息
http://www.foo.bar/status?full
http://www.foo.bar/status?json&full
http://www.foo.bar/status?html&full
http://www.foo.bar/status?xml&full

PHP-FPM status parameter description:

pool – fpm池子名称，大多数为www
process manager – 进程管理方式,值：static, dynamic or ondemand. dynamic
start time – 启动日期,如果reload了php-fpm，时间会更新
start since – 运行时长
accepted conn – 当前池子接受的请求数
listen queue – 请求等待队列，如果这个值不为0，那么要增加FPM的进程数量
max listen queue – 请求等待队列最高的数量
listen queue len – socket等待队列长度
idle processes – 空闲进程数量
active processes – 活跃进程数量
total processes – 总进程数量
max active processes – 最大的活跃进程数量（FPM启动开始算）
max children reached - 大道进程最大数量限制的次数，如果这个数量不为0，那说明你的最大进程数量太小了，请改大一点。
slow requests – 启用了php-fpm slow-log，缓慢请求的数量