Apache+php+memcache集群搭建

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实验环境：RHEL7.0  server1.example.com  172.25.254.1
                                server2.example.com  172.25.254.2

实验前提：已经编译安装完成php与nginx,具体内容可参考博客前边内容：。
实验内容：1.memcache安装
                 2.编译安装memcache使其支持php

                 3.修改php配置文件并配置memcache的测试页

                 4.测试
安装包：memcache-2.2.5.tgz

1.memcache安装(memcache的端口号是11211）
[iyunv@server1 ~]# yum install memcached -y
[iyunv@server1 ~]# /etc/init.d/httpd start
[iyunv@server1 ~]# /etc/init.d/memcached start
[iyunv@server1 ~]# curl -I localhost
HTTP/1.1 200 OK
Date: Sun, 11 Sep 2016 16:31:52 GMT
Server: Apache/2.2.15 (Red Hat)
Last-Modified: Sun, 11 Sep 2016 16:15:02 GMT
ETag: "1fca9-8-53c3dae8ae0cf"
Accept-Ranges: bytes
Content-Length: 8
Connection: close
Content-Type: text/html; charset=UTF-8
[iyunv@server1 ~]# telnet 127.0.0.1 11211
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
stats
STAT pid 2759
STAT uptime 14
STAT time 1473611553
STAT version 1.4.4
........................

STAT total_items 0
STAT evictions 0
END

2.编译安装memcache使其支持php
[iyunv@server1 mnt]# php -m |grep memcache     ###  可以看到php不支持memcached
[iyunv@server1 ~]# cd /mnt/
[iyunv@server1 mnt]# ls
memcache-2.2.5.tgz
[iyunv@server1 mnt]# tar -zxf memcache-2.2.5.tgz   ###解压tar zxf  memcache-2.2.5.tgz
[iyunv@server1 mnt]# cd memcache-2.2.5     ###进入解压目录
[iyunv@server1 memcache-2.2.5]# ls
[iyunv@server1 memcache-2.2.5]# phpize    ##会自动生成configure
Configuring for:
PHP Api Version:         20131106
Zend Module Api No:      20131226
Zend Extension Api No:   220131226
[iyunv@server1 memcache-2.2.5]# yum install libtool -y
[iyunv@server1 memcache-2.2.5]# ./configure \
> --prefix=/usr/local/lnmp/php/modules \
> --enable-memcache
[iyunv@server1 memcache-2.2.5]# make             ##编译
[iyunv@server1 memcache-2.2.5]# make install   ###安装
Installing shared extensions:     /usr/local/lnmp/php/lib/php/extensions/no-debug-non-zts-20131226/
[iyunv@server1 memcache-2.2.5]# cd /usr/local/lnmp/php/lib/php/extensions/no-debug-non-zts-20131226/
[iyunv@server1 no-debug-non-zts-20131226]# ls
memcache.so  opcache.a  opcache.so
[iyunv@server1 no-debug-non-zts-20131226]# /etc/init.d/memcached restart


3.编译PHP配置文件并配置memcache的测试页

[iyunv@server1 ~]# vim /usr/local/lnmp/php/etc/php.ini
    863     extension=memcache.so
[iyunv@server1 ~]# /etc/init.d/fpm restart
[iyunv@server1 ~]# php -m |grep mem        ###查看php是否支持memcached
memcache
[iyunv@server1 ~]# cd /mnt/memcache-2.2.5
[iyunv@server1 memcache-2.2.5]# cp example.php memcache.php /usr/local/lnmp/nginx/html/
[iyunv@server1 memcache-2.2.5]# cd /usr/local/lnmp/nginx/html/
[iyunv@server1 html]# vim example.php   ##分析信息不做修改
22 define('ADMIN_USERNAME','memcache');    // Admin Username
23 define('ADMIN_PASSWORD','willis');      // Admin Password   ##willis为密码

28 $MEMCACHE_SERVERS[] = '127.0.0.1:11211'; // add more as an array
29 #$MEMCACHE_SERVERS[] = 'mymemcache-server2:11211'; // add more as an array
[iyunv@server1 html]# nginx -s reload

4.测试
http://172.25.6.10/example.php##访问网站并多次刷新
http://172.25.6.10/memcache.php##查看命中率

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