php-fpm 配置进程池

什么是 php-fpm :php 是作为一个独立服务存在的,这个服务叫做 php-fpm
什么是 php-fpm pool :也就是 php-fpm 的进程池,这个进程池中运行了多个子进程,用来并发处理所有连接的动态请求
为什么要配置多个 pool :Nginx 接收到 php 动态请求会传给 php-fpm 处理,php-fpm 调用 pool 中的子进程来处理动态请求,如果这个 pool 资源耗尽,会导致其他站点无法访问资源,报 502 错误,因此有必要设置多个 php-fpm pool

默认只配置了一个 php-fpm pool :

[root@localhost ~]$ cat /usr/local/php/etc/php-fpm.conf

[global]                                          # 全局配置 
pid = /usr/local/php/var/run/php-fpm.pid          # php-fpm pid 文件
error_log = /usr/local/php/var/log/php-fpm.log    # php-fpm 错误日志路径

[www]                           # 进程池名称
listen = /tmp/php-fcgi.sock     # The address on which to accept FastCGI requests
listen.mode = 666               # Set permissions for unix socket, read/write permissions must be set in order to allow connections from a web server
user = php                      # Set the user who can accept FastCGI
group = php                     # Set the group who can accept FastCGI
pm = dynamic                    # 设置进程池中子进程的数目为动态的,它的数目基于下面的指令的值,关于 pm 的设置可以参考:https://gist.github.com/sotarok/2767859
pm.max_children = 50            # 同一时刻能够存在的最大子进程的数量
pm.start_servers = 20           # 在启动 php-fpm 时,要启动的子进程数量
pm.min_spare_servers = 5        # 处于空闲状态的最小子进程数量
pm.max_spare_servers = 35       # 处于空闲状态的最大子进程数量
pm.max_requests = 500           # 每个子进程最多能处理多少个请求,达到数量后就自动退出进程池
rlimit_files = 1024             # 限制打开的文件描述符数量,这个一般是通过 ulimit 设置

配置多个 php-fpm pool :

[root@localhost ~]$ cat /usr/local/php/etc/php-fpm.conf

[global]
pid = /usr/local/php/var/run/php-fpm.pid
error_log = /usr/local/php/var/log/php-fpm.log

[www]
listen = /tmp/php-fcgi.sock
listen.mode = 666
user = php
group = php
pm = dynamic
pm.max_children = 50
pm.start_servers = 20
pm.min_spare_servers = 5
pm.max_spare_servers = 35
pm.max_requests = 500
rlimit_files = 1024

[www2]
listen = /tmp/php-fcgi2.sock
listen.mode = 666
user = php
group = php
pm = dynamic
pm.max_children = 50
pm.start_servers = 20
pm.min_spare_servers = 5
pm.max_spare_servers = 35
pm.max_requests = 500
rlimit_files = 1024
[root@localhost ~]$ /usr/local/php/sbin/php-fpm -t
[root@localhost ~]$ /etc/init.d/php-fpm reload
[root@localhost ~]$ ps aux | grep php-fpm

Nginx 如何使用不同的 php-fpm pool :

[root@localhost ~]$ cat /usr/local/nginx/conf/vhost/test.com.conf 
server {
    listen 80;
    server_name www.test.com;
    index index.html index.html index.php;
    root /data/www;

    location ~ \.php$ {
        include fastcgi_params;
        fastcgi_pass unix:/tmp/php-fcgi.sock;    # 在这里指定使用哪个进程池
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /data/www$fastcgi_script_name;
    }
} 

 

 

 

 

 

 

 

    

posted @ 2019-01-31 11:11  孔雀东南飞  阅读(2574)  评论(0编辑  收藏  举报