开启php-fpm status page

要监控PHP运行情况，打开php-fpm的status page可以提供很多有用的信息。

找到php-fpm的配置路径和master的pid

# ps -ef | grep "php-fpm: master"
root     31236     1  0 11:46 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)  

修改php-fpm配置，打开status page

vi /usr/local/php/etc/php-fpm.conf
pm.status_path = /php_status

重启php-fpm

kill -USR2 31236

找到nginx配置路径

# ps -ef | grep "nginx: master"
root      3813     1  0 Mar09 ?        00:00:00 nginx: master process /usr/local/nginx/sbin/nginx

修改nginx配置，增加localhost的server节

server  
{
    listen       80;     
    server_name  localhost;
    error_log logs/localhost-error_log;
    access_log logs/localhost-access_log;

    location ~ ^/php_status$ 
    {       
        allow 127.0.0.1;
        deny all;

        include fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.socket; # 根据真实情况改动, 详见php-fpm配置
        fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
    }       

}

重启nginx

/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reload

测试php-fpm状态页

# curl localhost/php_status           
pool:                 www
process manager:      static
start time:           17/Mar/2016:12:09:30 +0800
start since:          747
accepted conn:        4992
listen queue:         0
max listen queue:     0
listen queue len:     0
idle processes:       196
active processes:     4
total processes:      200
max active processes: 15
max children reached: 0
slow requests:        0