yum安装实现lamp分离及Xcache加速

LAMP的搭建：
准备前提：
虚拟机：Centos7 172.18.250.77 安装httpd，通过Fcgi模块来跟php互动，只处理静态网页。
虚拟机：Centos7 172.18.250.78 安装php-fpm程序，php-5.3.3的版本已经包含了php-fpm，不需要在打补丁，但CentOS6上官方源没有php-fpm包，所以用CentOS 7 实验。
虚拟机：CentOS6 172.18.250.76 安装mysql，实现php跟mysql的互动。
httpd提供两个虚拟主机，分别安装wordpress博客及discuz论坛。

一、yum安装httpd

[root@localhost local]# yum -y install httpd

1、编辑主配置文件，注释DocumentRoot

[root@localhost httpd]# vim conf/httpd.conf
#DocumentRoot "/var/www/html"

2、创建虚拟主机文件

[root@localhost httpd]# cd /etc/httpd/conf.d/
[root@localhost conf.d]# vim vhost.conf
<VirtualHost *:80>
ServerName www.a.com
DocumentRoot "/www/blog"
<Directory "/www/blog">
Options None
Allowoverride None
Require all granted
<Directory>
ProxyRequests Off
ProxyPassMatch ^/(.*\.php)$ fcgi://172.18.250.78:9000/www/blog/$1
</VirtualHost>

<VirtualHost *:80>
ServerName www.b.net
DocumentRoot "/www/php"
<Directory "/www/php">
Options None
Allowoverride None
Require all granted
<Directory>
ProxyRequests Off
ProxyPassMatch ^/(.*\.php)$ fcgi://172.18.250.78:9000/www/php/$1
</VirtualHost>

3、创建虚拟主机需要的目录

[root@localhost conf.d]# mkdir -p /www/blog
[root@localhost conf.d]# mkdir -p /www/php

4、启动httpd服务，查看监听端口

[root@localhost conf.d]# systemctl start httpd.service
[root@localhost conf.d]# ss -tan
LISTEN      0      128       :::80        :::*

5、在虚拟主机目录创建测试页，看httpd是否正常

[root@localhost conf.d]# echo "www.a.com" >/www/blog/index.html
[root@localhost conf.d]# echo "www.b.net" >/www/php/index.html

OK,虚拟主机正常

二、yum安装PHP

[root@localhost ~]# yum -y install php-fpm

PHP-FPM是一个PHPFastCGI管理器，是只用于PHP的，httpd通过Fcgi模块来把php的文件传送给php-fpm进行处理
1、编辑php-fpm文件

[root@localhost ~]# vim /etc/php-fpm.d/www.conf
listen = 172.18.250.78:9000                //本机IP
listen.allowed_clients = 172.18.250.77     //httpd端IP

2、重启php-fpm程序，查看监听端口

[root@localhost ~]# systemctl start php-fpm.service
[root@localhost ~]# ss -tan
LISTEN      0      128              172.18.250.78:9000        *:*

3、在php端上创建和httpd上一样的目录

[root@localhost ~]# mkdir -p /www/blog
[root@localhost ~]# mkdir -p /www/php

4、创建测试页，验证看httpd能不能转发过来

[root@localhost ~]# mkdir -p /www/blog
[root@localhost ~]# mkdir -p /www/php
[root@localhost ~]# vim /www/blog/index.php
[root@localhost ~]# vim /www/php/index.php
<?php
phpinfo();
?>

OK,httpd能读到.php结尾的文件并转发给php处理

三、yum安装mysql

[root@localhost ~]# yum -y install mysql-server

1、启动mysql，并对数据库就行安全加固

[root@localhost ~]# service mysqld start
[root@localhost ~]# mysql_secure_installation
Enter current password for root (enter for none):    //默认数据库密码为空
Set root password? [Y/n] y                           //设置新密码
Remove anonymous users? [Y/n] y                      //移除匿名用户
Disallow root login remotely? [Y/n] n                //是否禁止用户远程登录
Remove test database and access to it? [Y/n] y       //是否移除test数据库
Reload privilege tables now? [Y/n] y                 //是否重启加载权限列表

2、创建用户和数据库，并授权php端能远程登录

mysql> grant all on *.* to 'admin'@'172.18.250.78' identified by "admin";
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> create database mytest;
Query OK, 1 row affected (0.00 sec)
mysql> create database bbs;
Query OK, 1 row affected (0.01 sec)

3、测试php能不能登录数据库

[root@localhost ~]# yum -y install php-mysql   //安装mysql驱动
[root@localhost ~]# vim /www/blog/index.php
[root@localhost ~]# vim /www/php/index.php
<?php
$conn = mysql_connect ('172.18.250.76','admin','admin');
if( $conn )
echo "SUCCESS";
else
echo "Failure";
?>
[root@localhost ~]# systemctl restart php-fpm.service

OK，测试正常，可以安装wordpress和Discuz论坛

1、分别在php服务器上和httpd上解压wordpress包

[root@localhost blog]# unzip wordpress-4.3.1-zh_CN.zip
[root@localhost blog]# unzip wordpress-4.3.1-zh_CN.zip
[root@localhost blog]# cd wordpress                  //只需在php上改动
[root@localhost wordpress]# cp wp-config-sample.php wp-config.php
/** WordPress数据库的名称 */
define('DB_NAME', 'mytest');

/** MySQL数据库用户名 */
define('DB_USER', 'admin');

/** MySQL数据库密码 */
define('DB_PASSWORD', 'admin');

/** MySQL主机 */
define('DB_HOST', '172.18.250.76');

出现这个页面的话只需要修改httpd主配置文件，让httpd能识别php的文件代码

[root@localhost blog]# vim /etc/httpd/conf/httpd.conf
AddType application/x-httpd-php .php              //添加下面的语句就行
AddType aaplication/x-httpd-source .phps
<IfModule dir_module>
DirectoryIndex index.php index.html
</IfModule>

重启httpd服务，再次测试下



登录wordPress博客：




OK，WordPress博客能正常加载

1、分别在php服务器上和httpd上解压Discuz包

[root@localhost php]# unzip Discuz_X3.2_SC_UTF8.zip
[root@localhost php]# unzip Discuz_X3.2_SC_UTF8.zip
[root@localhost php]# cd upload         //在php服务器上

修改目录的权限即可：

[root@localhost upload]# chown -R apache config/
[root@localhost upload]# chown -R apache uc_client/      //httpd和php上都需要改
[root@localhost upload]# chown -R apache data
[root@localhost upload]# chown -R apache template/
[root@localhost upload]# chown -R apache uc_server/

根据步骤一步步执行就行：




注册完后登录论坛：



。。。。。发现论坛只有文字，这是因为php安装了Discuz后修改了程序的文件导致的，这时httpd上的静态程序文件跟php上的动态程序文件不一致，所以只需要同步下就行。

[root@localhost php]# scp -r upload/* root@172.18.250.77:/www/php/upload/

再次刷新：OK



如果想要实现自动同步的话，可以使用initory+rsync、sersync等工具。

四：安装Xcahe对php进行加速

[root@localhost src]# tar -xf xcache-3.2.0.tar.bz2   //只需在PHP服务器上
[root@localhost src]# ls
xcache-3.2.0  xcache-3.2.0.tar.bz2
[root@localhost src]# cd xcache-3.2.0
[root@localhost xcache-3.2.0]# yum -y install php-devel   //安装php开发工具包
[root@localhost xcache-3.2.0]# phpize    //检查php的版本及api接口
Configuring for:
PHP Api Version:         20100412
Zend Module Api No:      20100525
Zend Extension Api No:   220100525
[root@localhost xcache-3.2.0]# ./configure --enable-xcache --with-php-config=/usr/bin/php-config
[root@localhost xcache-3.2.0]# make && make install
[root@localhost xcache-3.2.0]# cp xcache.ini /etc/php.d/

[root@localhost upload]# ab -n100 -c10 http://172.18.250.77/wordpress/index.php Benchmarking 172.18.250.77 (be patient).....done
Server Software:        Apache/2.4.6
Server Hostname:        172.18.250.77
Server Port:            80
Document Path:          /wordpress/index.php
Document Length:        0 bytes
Concurrency Level:      10
Time taken for tests:   3.908 seconds
Complete requests:      100
Failed requests:        0
Write errors:           0
Non-2xx responses:      100
Total transferred:      34900 bytes
HTML transferred:       0 bytes
Requests per second:    25.59 [#/sec] (mean)  //ab压力测试每秒请求个数
Time per request:       390.849 [ms] (mean)
Time per request:       39.085 [ms] (mean, across all concurrent requests)
Transfer rate:          8.72 [Kbytes/sec] received

Connection Times (ms)
min  mean[+/-sd] median   max
Connect:        0    0   0.3      0       1
Processing:   104  369  95.7    368     589
Waiting:      104  367  94.8    367     589
Total:        105  369  95.7    368     589

Percentage of the requests served within a certain time (ms)
50%    368
66%    410
75%    443
80%    455
90%    502
95%    536
98%    589
99%    589
100%    589 (longest request)

重启php-fpm服务，看xcache有没有加载：

[root@localhost blog]# php -m
[Zend Modules]                  //表明xcache已经开启
XCache
XCache Cacher

再一次做ab压力测试：

[root@localhost upload]# ab -n100 -c10 http://172.18.250.77/wordpress/index.php Benchmarking 172.18.250.77 (be patient).....done
Server Software:        Apache/2.4.6
Server Hostname:        172.18.250.77
Server Port:            80
Document Path:          /wordpress/index.php
Document Length:        0 bytes
Concurrency Level:      10
Time taken for tests:   1.489 seconds
Complete requests:      100
Failed requests:        0
Write errors:           0
Non-2xx responses:      100
Total transferred:      34900 bytes
HTML transferred:       0 bytes
Requests per second:    67.18 [#/sec] (mean)   //加载xcache后有了提升
Time per request:       148.853 [ms] (mean)
Time per request:       14.885 [ms] (mean, across all concurrent requests)
Transfer rate:          22.90 [Kbytes/sec] received

Connection Times (ms)
min  mean[+/-sd] median   max
Connect:        0    0   0.2      0       1
Processing:    38  141  31.0    139     240
Waiting:       37  141  31.0    138     240
Total:         38  141  31.0    139     240

Percentage of the requests served within a certain time (ms)
50%    139
66%    152
75%    160
80%    168
90%    179
95%    194
98%    216
99%    240
100%    240 (longest request)