php-fpm的pool

当很多php站点共用一个池的时候，若是其中一个站点影响了这个pool，会导致其他站点也出现问题，为避免这个问题发生，需要对每个站点新建一个pool，进行隔离，保障服务安全

1、[root@centos7 ~]# vim /usr/local/php-fpm/etc/php-fpm.conf  

新增：

[test.com]

listen = /tmp/test.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

2、[root@centos7 ~]# /usr/local/php-fpm/sbin/php-fpm -t

3、[root@centos7 ~]# /etc/init.d/php-fpm reload

4、[root@centos7 ~]# vim /usr/local/nginx/conf/vhost/aaa.com.conf

5、新增如下：

[root@centos7 ~]# vim /usr/local/nginx/conf/vhost/aaa.com.conf.bak 

server

{

    listen 80 default_server;

    #有'default_server'标记的就是默认虚拟主机

    server_name aaa.com;

    index index.html index.htm index.php;

    root /data/wwwroot/default;

    location ~ \.php$

    {

        include fastcgi_params;

        fastcgi_pass unix:/tmp/test.sock;

        fastcgi_index index.php;

        fastcgi_param SCRIPT_FILENAME /data/wwwroot/default$fastcgi_script_name;

    }

}

6、[root@centos7 ~]# /etc/init.d/nginx reload

7、可以看出有两个pool了

[root@centos7 ~]# ps aux |grep php-fpm

php-fpm    8403  0.0  0.2 227144  4808 ?        S    17:22   0:00 php-fpm: pool www

php-fpm    8423  0.0  0.2 227144  4812 ?        S    17:22   0:00 php-fpm: pool test.com

添加php-fpm.conf子配置文件

为了方便管理php-fpm.conf上配置文件，类似于nginx上的虚拟主机conf，也可以分开填写文件

1、

[root@centos7 php-fpm.d]# 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

include = /usr/local/php-fpm.d/*.conf

2、

[root@centos7 php-fpm.d]# vim /usr/local/php-fpm.d/test.conf

[test.com]

listen = /tmp/test.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

3、

[root@centos7 php-fpm.d]# vim /usr/local/php-fpm.d/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

4、

[root@centos7 php-fpm.d]# /usr/local/php-fpm/sbin/php-fpm -t

5、

[root@centos7 php-fpm.d]# /etc/init.d/php-fpm reload

验证：是否有2个pool

[root@centos7 php-fpm.d]# ps -ef | grep php-fpm

php-fpm慢执行日志

当php访问变慢时，可以通过慢日志来查看是哪个php脚本导致，类似mysql的慢日志

1、新增内容

[root@centos7 php-fpm.d]# vim /usr/local/php-fpm.d/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

request_slowlog_timeout = 1

#请求超过1秒就记录到日志里

slowlog = /usr/local/php-fpm/var/log/www-slow.log

2、实验脚本编写

[root@centos7 php-fpm.d]# vim /data/wwwroot/test.com/sleep.php

#输出test slow log，sleep2秒，结束

<?php

echo "test slow log";

sleep(2);

echo "done";

?>

[root@centos7 php-fpm.d]# /etc/init.d/php-fpm reload

3、验证：

[root@centos7 php-fpm.d]# curl -x127.0.0.1:80 test.com/sleep.php 

test slow logdone[root@cen

[root@centos7 php-fpm.d]# tail /usr/local/php-fpm/var/log/www-slow.log 

#记录了日志

[16-Nov-2017 17:41:59]  [pool www] pid 8669

script_filename = /data/wwwroot/test.com/sleep.php

[0x00007f15620aa2e8] sleep() /data/wwwroot/test.com/sleep.php:3

open_basedir设置

当一台服务器跑多个站点时，使用open_basedir限定各个站点所能访问的服务器上的目录的范围。在php-fpm服务中，可以针对每个pool设定open _ basedir。

1、新增内容

[root@centos7 php-fpm.d]# vim /usr/local/php-fpm.d/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

request_slowlog_timeout = 1

#请求超过1秒就记录到日志里

slowlog = /usr/local/php-fpm/var/log/www-slow.log

php_admin_value[open_basedir]=/data/wwwroot/test.com:/tmp/

2、

[root@centos7 php-fpm.d]# vim /data/wwwroot/test.com/1.php

<?php

echo "This is  open_basedir";

3、验证:

[root@centos7 php-fpm.d]# /etc/init.d/php-fpm reload

Reload service php-fpm  done

[root@centos7 php-fpm.d]# curl -x127.0.0.1:80 test.com/1.php

This is  open_basedir

php-fpm进程管理

php-fpm中pool配置参数解析：

[root@adailinux php-fpm.d]# vim www.conf

[www]

listen = /tmp/php-fcgi.sock

listen.mode = 666

user = php-fpm

group = php-fpm

pm = dynamic

;定义进程启动方式（dynamic表示动态，static表示静态）

;只有此处设置为dynamic，下面的配置才生效，若是选择静态，会预先生产设定的进程，不会动态变化

pm.max_children = 50

;最多可启动的子进程数量

pm.start_servers = 20

;设定初始启动的进程数量

pm.min_spare_servers = 5

;表示php-fpm空闲时最少要有几个子进程

pm.max_spare_servers = 35

;表示php-fpm空闲时最多要有几个子进程

pm.max_requests = 500

;表示一个子进程最多可接受多少个请求

rlimit_files = 1024

;表示每个子进程打开的多少个文件句柄

request_slowlog_timeout = 1

;当请求超过1秒开始记录日志

slowlog = /usr/local/php-fpm/var/log/www-slow.log

;日志存放地址

php_admin_value[open_basedir]=/data/wwwroot/test.com:/tmp/