CentOS7部署LAMP+xcache （php-fpm模式）

　　此次实验准备3台CentOS7服务器，版本号：CentOS Linux release 7.2.1511。

搭建Apache服务器

• 通过 yum -y install httpd 安装Apache：

• 访问正常：

• 修改配置文件，添加2个虚拟主机，一个提供phpMyAdmin，一个提供wordpress：

[root@happiness ~]# vim /etc/httpd/conf/httpd.conf
#启用解析，加速httpd服务的启动
    ServerName localhost:80
#注销默认主目录
    #DocumentRoot "/var/www/html"

[root@happiness ~]# vim /etc/httpd/conf.d/vhost.conf
#默认主页
    DirectoryIndex index.php
#虚拟主机a，后期提供phpMyAdmin
    <VirtualHost 192.168.4.119:80>
        ServerName www.aaa.net
        DocumentRoot /var/www/aaa
        ProxyRequests off 
        ProxyPassMatch ^/(.*.php)$ fcgi://192.168.4.118:9000/var/www/php_aaa/$1
        <Directory "/var/www/aaa">
            Options None
            Allowoverride None
            Require all granted
        </Directory>
    </VirtualHost>
#虚拟主机b，后期提供wordpress
    <VirtualHost 192.168.4.119:80>
        ServerName www.bbb.net
        DocumentRoot /var/www/bbb
        ProxyRequests off 
        ProxyPassMatch ^/(.*.php)$ fcgi://192.168.4.118:9000/var/www/php_bbb/$1
        <Directory "/var/www/bbb">
            Options None
            Allowoverride None
            Require all granted
        </Directory>
    </VirtualHost>

• 测试2个虚拟主机静态资源是否可用：

#在虚拟主机a中新建测试页aaa.html
[root@happiness ~]# vim /var/www/aaa/aaa.html
    <h1>test virtualhost aaa</h1>

#在虚拟主机b中新建测试页bbb.html
[root@happiness ~]# vim /var/www/bbb/bbb.html
    <h1>test virtualhost bbb</h1>

访问结果：(实验中没搭建dns服务，修改要访问Apache的主机的hosts文件，添加 192.168.4.119  www.aaa.net 和 192.168.4.119  www.bbb.net，来完成访问)

   

搭建php服务器

•  通过 yum -y install php-fpm php-mysql php-mbstring 搭建php：

• 修改php配置文件：

[root@happiness ~]# vim /etc/php-fpm.d/www.conf
#监听本地能与外部通信的地址
    listen = 192.168.4.118:9000
#允许哪些主机访问
    listen.allowed_clients = 192.168.4.119
#确保user、group跟Apache服务器httpd进程的user、group一致
    user = apache
    group = apache
#session目录不存在，需要手动创建
    php_value[session.save_path] = /var/lib/php/session

[root@happiness ~]# mkdir /var/lib/php/session
[root@happiness ~]# chown apache:apache /var/lib/php/session
[root@happiness ~]# ll -hd /var/lib/php/session/
    drwxr-xr-x. 2 apache apache 4.0K Jun 21 10:28 /var/lib/php/session/

#虚拟机a新建php测试页
[root@happiness ~]# cat /var/www/php_aaa/index.php
    <h1>a</h1>
    <?php
            phpinfo();
    ?>
#虚拟机b新建php测试页
[root@happiness ~]# cat /var/www/php_bbb/testbbb.php
    <h1>b</h1>
    <?php
        phpinfo();
    ?>

访问结果：(注意，如果访问结果出现：File not found类似的提示时，需要关闭php服务器的selinux，临时关闭通过命令 setenforce Permissive 进行，永久关闭修改配置文件 vim /etc/sysconfig/selinux)

  

 搭建Mariadb服务器

• 通过 yum -y install mariadb-server 安装mariadb：

• 创建mariadb用户访问权限：

MariaDB [(none)]> CREATE USER 'wpuser'@'192.168.4.118' IDENTIFIED BY 'wppasswd';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON wordpressdb.* TO 'wpuser'@'192.168.4.118';
MariaDB [(none)]> CREATE USER 'pmauser'@'192.168.4.118' IDENTIFIED BY 'pmapasswd';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON pmadb.* TO 'pmauser'@'192.168.4.118';
MariaDB [(none)]> FULSH PRIVILEGES;
MariaDB [(none)]> CREATE DATABASE wordpressdb DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
MariaDB [(none)]> CREATE DATABASE pmadb DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

• 分别在虚拟机a和b中建立测试页，看能否成功连接mariadb服务器：

[root@happiness ~]# cat /var/www/php_aaa/mysql_conn.php
    <h1>aaa</h1>
    <?php
        $conn = mysql_connect('192.168.4.117','pmauser','pmapasswd');
        if($conn)
            echo "aaa connects successfully";
        else
            echo "aaa fails to connect.";
    ?>
[root@happiness ~]# cat /var/www/php_bbb/mysql_conn.php
    <h1>bbb</h1>
    <?php
        $conn = mysql_connect('192.168.4.117','wpuser','wppasswd');
        if($conn)
            echo "bbb connects successfully.";
        else
            echo "bbb fails to connect.";
    ?>

访问结果：
   

搭建phpMyAdmin和WordPress

• 分别从官网下载 phpMyAdmin 和 WordPress 源码包，分别解压于对应的虚拟机主目录下：(此时最新的 phpMyAdmin-4.8.1版本仅支持 PHP 5.5 to 7.2 and MySQL 5.5，而实验中PHP版本为5.4，故下载了 phpMyAdmin-4.4.15.10版本)

• 搭建phpMyAdmin：

#修改phpMyAdmin配置文件
[root@happiness ~]# vim /var/www/php_aaa/phpmyadmin/libraries/config.default.php
#可通过 openssl rand -base64 32 随机字符串
　　$cfg['blowfish_secret'] = 'w14hLCZeyOtg4+9izK9O3oW8BLjTpJVAzF1GCAtJ7U4=';
　　$cfg['Servers'][$i]['host'] = '192.168.4.117';
　　$cfg['Servers'][$i]['user'] = 'pmauser';
　　$cfg['Servers'][$i]['password'] = 'pmapasswd';

#修改完配置后复制一整份 phpmyadmin文件到Apache服务器
[root@happiness ~]# scp -r /var/www/php_aaa/phpmyadmin/ root@192.168.4.119:/var/www/aaa/

访问结果：

•  搭建WordPress：

#修改WordPress配置文件
[root@happiness ~]# cp /var/www/php_bbb/wordpress/wp-config-sample.php /var/www/php_bbb/wordpress/wp-config.php
[root@happiness ~]# vim /var/www/php_bbb/wordpress/wp-config.php
　　define('DB_NAME', 'wordpressdb');
　　define('DB_USER', 'wpuser');
　　define('DB_PASSWORD', 'wppasswd');
　　define('DB_HOST', '192.168.4.117');

#修改完配置后复制一整份wordpress到Apache服务器：
[root@happiness ~]# scp -r /var/www/php_bbb/wordpress root@192.168.4.119:/var/www/bbb/

访问结果：

 借助php-xcache加速访问

•  没安装php-xcache进行的压力测试：

[root@happiness ~]# ab -n 10000 -c 1000 http://www.bbb.net/wordpress
This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.bbb.net (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        Apache/2.4.6
Server Hostname:        www.bbb.net
Server Port:            80

Document Path:          /wordpress
Document Length:        237 bytes

Concurrency Level:      1000
Time taken for tests:   12.966 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Non-2xx responses:      10000
Total transferred:      4650000 bytes
HTML transferred:       2370000 bytes
Requests per second:    771.26 [#/sec] (mean)
Time per request:       1296.588 [ms] (mean)
Time per request:       1.297 [ms] (mean, across all concurrent requests)
Transfer rate:          350.23 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   47 206.0      0    1004
Processing:     5  136 1056.6     14   12899
Waiting:        1  136 1056.6     14   12899
Total:         10  183 1085.0     15   12947

Percentage of the requests served within a certain time (ms)
  50%     15
  66%     15
  75%     16
  80%     17
  90%     25
  95%   1208
  98%   1676
  99%   1679
 100%  12947 (longest request)

• 在php服务器上通过 yum -y install php-cache 安装cache：

• systemctl reload php-fpm.service，并进行压力测试，可以看到访问速度有了很大提升：

[root@happiness ~]# ab -n 10000 -c 1000 http://www.bbb.net/wordpress
This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.bbb.net (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        Apache/2.4.6
Server Hostname:        www.bbb.net
Server Port:            80

Document Path:          /wordpress
Document Length:        237 bytes

Concurrency Level:      1000
Time taken for tests:   1.973 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Non-2xx responses:      10000
Total transferred:      4650000 bytes
HTML transferred:       2370000 bytes
Requests per second:    5068.89 [#/sec] (mean)
Time per request:       197.282 [ms] (mean)
Time per request:       0.197 [ms] (mean, across all concurrent requests)
Transfer rate:          2301.79 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   56 220.6      4    1011
Processing:     5   39  90.4     13    1102
Waiting:        1   36  90.5     10    1101
Total:         10   95 245.2     16    1222

Percentage of the requests served within a certain time (ms)
  50%     16
  66%     17
  75%     19
  80%     20
  90%    220
  95%   1019
  98%   1029
  99%   1213
 100%   1222 (longest request)

• 修改xcache配置文件，修改缓存大小为100M，再进行压力测试，可以看到访问速度略有提高：

[root@happiness ~]# vim /etc/php.d/xcache.ini
    xcache.size  =  100M

[root@happiness ~]# ab -n 10000 -c 1000 http://www.bbb.net/wordpress
This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking www.bbb.net (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests


Server Software:        Apache/2.4.6
Server Hostname:        www.bbb.net
Server Port:            80

Document Path:          /wordpress
Document Length:        237 bytes

Concurrency Level:      1000
Time taken for tests:   1.642 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Non-2xx responses:      10000
Total transferred:      4650000 bytes
HTML transferred:       2370000 bytes
Requests per second:    6088.82 [#/sec] (mean)
Time per request:       164.235 [ms] (mean)
Time per request:       0.164 [ms] (mean, across all concurrent requests)
Transfer rate:          2764.94 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   57 226.4      3    1011
Processing:     6   49 171.5     11    1613
Waiting:        1   47 171.7      8    1612
Total:          8  106 310.0     14    1636

Percentage of the requests served within a certain time (ms)
  50%     14
  66%     16
  75%     22
  80%     23
  90%    219
  95%   1028
  98%   1409
  99%   1418
 100%   1636 (longest request)