12.21 php-fpm的pool

时间:2022-04-27
本文章向大家介绍12.21 php-fpm的pool,主要内容包括php-fpm的pool目录概要、php-fpm的pool、基本概念、基础应用、原理机制和需要注意的事项等,并结合实例形式分析了其使用技巧,希望通过本文能帮助到大家理解应用这部分内容。

php-fpm的pool目录概要

  • vim /usr/local/php/etc/php-fpm.conf//在[global]部分增加
  • include = etc/php-fpm.d/*.conf
  • mkdir /usr/local/php/etc/php-fpm.d/
  • cd /usr/local/php/etc/php-fpm.d/
  • vim www.conf //内容如下
[www]
listen = /tmp/www.sock
listen.mode=666
user = php-fpm
group = php-fpm
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
  • 继续编辑配置文件
  • vim aming.conf //内容如下
[aming]
listen = /tmp/aming.sock
listen.mode=666
user = php-fpm
group = php-fpm
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
  • /usr/local/php/sbin/php-fpm –t
  • /etc/init.d/php-fpm restart

php-fpm的pool

  1. php-fpm有一个概念,叫做pool。 使用ps aux |grep php-fpm最右侧看到的那一列就是pool,也就是它的池子
[root@hanfeng ~]# ps aux |grep php-fpm
root      2280  0.0  0.4 227776  4952 ?        Ss   18:29   0:00 php-fpm: master process (/usr/local/php-fpm/etc/php-fpm.conf)
php-fpm   2281  0.0  0.4 227776  4708 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2282  0.0  0.4 227776  4708 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2283  0.0  0.4 227776  4708 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2284  0.0  0.4 227776  4708 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2285  0.0  0.4 227776  4712 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2286  0.0  0.4 227776  4712 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2287  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2288  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2289  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2290  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2291  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2292  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2293  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2294  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2295  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2296  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2297  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2298  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2299  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
php-fpm   2300  0.0  0.4 227776  4716 ?        S    18:29   0:00 php-fpm: pool www
root      7644  0.0  0.0 112680   984 pts/0    S+   21:38   0:00 grep --color=auto php-fpm
[root@hanfeng ~]# 
  1. 切换目录,会看到我们只定义了一个www的pool
[root@hanfeng ~]# cd /usr/local/php-fpm/etc/
[root@hanfeng etc]# ls
pear.conf  php-fpm.conf  php-fpm.conf.default  php.ini
[root@hanfeng etc]# cat php-fpm.conf

[global]
pid = /usr/local/php-fpm/var/run/php-fpm.pid
error_log = /usr/local/php-fpm/var/log/php-fpm.log
[www]
listen = /tmp/php-fcgi.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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@hanfeng etc]#
  1. 其实是支持定义多个池子的,每一个池子都可以监听不同的sock或者TCP/IP,nginx如果有多个站点,那么每个站点都能去使用一个独立的pool,这样做的优势就是,当其中一个php发生502了(502很有可能是资源不够了),如果所有的网站使用了同一个池子,那其中一个网站发生了故障(比如写的程序有问题),那么就会把你的php资源耗尽,这样就会造成其他的站点也会502,所以有必要把每一个站点隔离开来,每一个站点使用独立的pool
  2. 设置多个pool,方法一
  • 在/usr/local/php-fpm/etc/php-fpm里面,继续增加pool
    • 写第二个pool,名称为hanfeng.com,listen = /tmp/hanfeng.sock
    • 配置中的其他信息可根据自己的需求来配置
[root@hanfeng etc]# vi /usr/local/php-fpm/etc/php-fpm.conf

[global]
pid = /usr/local/php-fpm/var/run/php-fpm.pid
error_log = /usr/local/php-fpm/var/log/php-fpm.log
[www]
listen = /tmp/php-fcgi.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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

[hanfeng.com]
listen = /tmp/hanfeng.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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

保存退出
  1. 检查是否存在语法错误
[root@hanfeng etc]# /usr/local/php-fpm/sbin/php-fpm -t
[09-Jan-2018 23:28:58] NOTICE: configuration file /usr/local/php-fpm/etc/php-fpm.conf test is successful
[root@hanfeng etc]# 
  1. 若没有语法错误,做一个php-fpm重启
    • /etc/init.d/php-fpm restart 或使用 /etc/init.d/php-fpm reload
[root@hanfeng etc]# /etc/init.d/php-fpm reload
Reload service php-fpm  done
[root@hanfeng etc]# 
  1. 这里再来ps查看,会看到最右侧多了一个hanfeng.com,这个就是两个不同的池子
[root@hanfeng etc]# ps aux |grep php-fpm
root      7731  0.0  0.4 227836  4964 ?        Ss   22:32   0:00 php-fpm: master process (/usr/local/php-fpm/etc/php-fpm.conf)
php-fpm   7732  0.0  0.4 227776  4708 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7733  0.0  0.4 227776  4708 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7734  0.0  0.4 227776  4708 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7735  0.0  0.4 227776  4708 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7736  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7737  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7738  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7739  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7740  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7741  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7742  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7743  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7744  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7745  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7746  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7747  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7748  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7749  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7750  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7751  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool www
php-fpm   7752  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7753  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7754  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7755  0.0  0.4 227776  4712 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7756  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7757  0.0  0.4 227776  4716 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7758  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7759  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7760  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7761  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7762  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7763  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7764  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7765  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7766  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7767  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7768  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7769  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7770  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
php-fpm   7771  0.0  0.4 227776  4720 ?        S    22:32   0:00 php-fpm: pool hanfeng.com
root      7775  0.0  0.0 112676   988 pts/0    R+   22:39   0:00 grep --color=auto php-fpm
[root@hanfeng etc]# 
  1. 在nginx中使用新的pool
[root@hanfeng etc]# cd /usr/local/nginx/conf/vhost/
[root@hanfeng vhost]# ls
aaa.com.conf  load.conf  proxy.conf  ssl.conf  test.com.conf
[root@hanfeng vhost]# 
  1. 可以把test.com.conf定义成fastcgi_pass unix:/tmp/php-fcgi.sock;
    • 这是www池子中的php-fcgi.sock
[root@hanfeng vhost]# vim test.com.conf

server
{
    listen 80;
    server_name test.com test1.com test2.com;
    index index.html index.htm index.php;
    root /data/wwwroot/test.com;
     if ($host != 'test.com' ) {
        rewrite  ^/(.*)$  http://test.com/$1  permanent;
    }
   # location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$
   # {
    #      expires      7d;
    #      access_log off;
    #}
location ~* ^.+.(gif|jpg|png|swf|flv|rar|zip|doc|pdf|gz|bz2|jpeg|bmp|xls)$
{
    expires 7d; 
    valid_referers none blocked server_names  *.test.com ;  
    if ($invalid_referer) {                                      

        return 403;                                                  
    }
    access_log off;
}
location ~ .*.(js|css)$
    {
          expires      12h;
          access_log off;
    }
    location /admin/
    {
    allow 192.168.202.130;
    allow 127.0.0.1;
    deny all;
    }
location ~ .php$
    {
        include fastcgi_params;
        fastcgi_pass unix:/tmp/php-fcgi.sock; 
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /data/wwwroot/test.com$fastcgi_script_name;
    }
    access_log /tmp/test.com.log combined_realip; 
}
  1. 再把另一个aaa.com.conf中 fastcgi_pass unix:/tmp/hanfeng.sock;
    • 这是hanfeng.com池子中的hanfeng.sock
    • 路径/data/wwwroot/default$fastcgi_script_name;
[root@hanfeng vhost]# vim aaa.com.conf

server
{
    listen 80 default_server;
    server_name aaa.com;
    index index.html index.htm index.php;
    root /data/wwwroot/default;
}
location ~ .php$
    {
        include fastcgi_params;
        fastcgi_pass unix:/tmp/hanfeng.sock;  
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /data/wwwroot/default$fastcgi_script_name;
    }
保存退出
  1. 这样这两个站点就隔离开了
  2. 假设现在test.com请求量很大,最终将进程耗尽了,比如php-fpm耗尽了,这时候又有其他请求来了,就会报502,因为没有多余的php给进程提供服务了,而另一个站点则不受影响,因为使用的是另一个池子,另一个pool,这就是定义多个池子的原因

方法二

  1. 在vhost目录下是多个.conf文件,在nginx.conf里面加了一条 include vhost/*.conf;
[root@hanfeng vhost]# ls
aaa.com.conf  load.conf  proxy.conf  ssl.conf  test.com.conf
[root@hanfeng vhost]# tail ../nginx.conf
    tcp_nodelay on;
    gzip on;
    gzip_min_length 1k;
    gzip_buffers 4 8k;
    gzip_comp_level 5;
    gzip_http_version 1.1;
    gzip_types text/plain application/x-javascript text/css text/htm 
    application/xml;
    include vhost/*.conf;
}
[root@hanfeng vhost]# 
  1. 在php-fpm同样是支持 include vhost/*.conf;
  2. 在主配置文件php-fpm中的 [global] 加入include = etc/php-fpm.d/*.conf ,并将池子拆分出来,将其中的池子pool删除
    • 快速删除内容方法,100dd就会给删除
[root@hanfeng etc]# cat php-fpm.conf

[global]
pid = /usr/local/php-fpm/var/run/php-fpm.pid
error_log = /usr/local/php-fpm/var/log/php-fpm.log
[www]
listen = /tmp/php-fcgi.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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

[hanfeng.com]
listen = /tmp/hanfeng.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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@hanfeng etc]#

最终如下

[root@hanfeng etc]# vim php-fpm.conf

[global]
pid = /usr/local/php-fpm/var/run/php-fpm.pid
error_log = /usr/local/php-fpm/var/log/php-fpm.log
include = etc/php-fpm.d/*.conf
  1. 因为include = etc/php-fpm.d/,所以需要创建/php-fpm.d/的目录
[root@hanfeng etc]# mkdir php-fpm.d
[root@hanfeng etc]# 
  1. 切换路径,并创建www.conf,然后将之前php-fpm.conf中的www部分写入到其中
[root@hanfeng etc]# cd !$
cd php-fpm.d
[root@hanfeng php-fpm.d]# vim www.conf

[www]
listen = /tmp/php-fcgi.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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
保存退出
  1. 然后在创建hanfeng.conf
[root@hanfeng php-fpm.d]# vim hanfeng.conf

[hanfeng.com]
listen = /tmp/hanfeng.sock
listen.mode = 666
user = php-fpm
group = php-fpm
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
保存退出
  1. 这样看着就会很干净,类似于nginx的vhost
  2. 检查是否有错误
[root@hanfeng php-fpm.d]# /usr/local/php-fpm/sbin/php-fpm -t
[09-Jan-2018 23:28:58] NOTICE: configuration file /usr/local/php-fpm/etc/php-fpm.conf test is successful

[root@hanfeng php-fpm.d]# 
  1. 然后重启查看
[root@hanfeng php-fpm.d]# /etc/init.d/php-fpm restart
Gracefully shutting down php-fpm . done
Starting php-fpm  done
[root@hanfeng php-fpm.d]# !ps
ps aux |grep php-fpm
root      7832  0.2  0.4 227864  4980 ?        Ss   23:29   0:00 php-fpm: master process (/usr/local/php-fpm/etc/php-fpm.conf)
php-fpm   7833  0.0  0.4 227804  4712 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7834  0.0  0.4 227804  4712 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7835  0.0  0.4 227804  4712 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7836  0.0  0.4 227804  4712 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7837  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7838  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7839  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7840  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7841  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7842  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7843  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7844  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7845  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7846  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7847  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7848  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7849  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7850  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7851  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7852  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool hanfeng.com
php-fpm   7853  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7854  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7855  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7856  0.0  0.4 227804  4716 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7857  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7858  0.0  0.4 227804  4720 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7859  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7860  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7861  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7862  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7863  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7864  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7865  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7866  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7867  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7868  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7869  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7870  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7871  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
php-fpm   7872  0.0  0.4 227804  4724 ?        S    23:29   0:00 php-fpm: pool www
root      7874  0.0  0.0 112676   988 pts/0    R+   23:29   0:00 grep --color=auto php-fpm
[root@hanfeng php-fpm.d]# 
  1. 这就是多个池子的配置方法