nginx+PHP+memcached+MySQL+ip-hash做memcached集群
1、nginx与memcached整合#安装memcached支持的事务库libevent
wget https://github.com/libevent/libevent/releases/download/release-2.0.22-stable/libevent-2.0.22-stable.tar.gz
tar zxf libevent-2.0.22-stable.tar.gz
cd libevent-2.0.22-stable
./configure --prefix=/usr/local/libevent
make && make install
echo $?
cd ..
#接下来安装memcached:
wget http://www.memcached.org/files/memcached-1.4.35.tar.gz
tar zxf memcached-1.4.35.tar.gz
cd memcached-1.4.35
./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent
make && make install
echo $?
cd ..
#运行memcached
# /usr/local/memcached/bin/memcached -d -u nobody -vv
#配置nginx配置文件nginx.conf，定位user的uri交给memcached做缓存
#添加location定位：
location ~* user {
set $memcached_key "$uri"; #设置memcached的key为uri
memcached_pass 192.168.146.132:11211; #链接memcached
error_page 404 /callback.php; #错误定位
}
#加载nginx配置
nginx -s> #在memcached中写入一条URI数据，测试整合是否成功
# telnet 192.168.146.132 11211
Trying 192.168.146.132...
Connected to 192.168.146.132.
Escape character is '^]'.
add /user1.html 0 0 7
iamlisi
STORED
quit
#访问http://192.168.146.132/user1.html如能看到iamlisi，那么nginx与memcache整合成功了！
2、整合PHP与memcahced
#安装PHP扩展模块memcache
wget http://pecl.php.net/get/memcache-2.2.7.tgz
tar zxvf memcache-2.2.7.tgz
cd memcache-2.2.7
/usr/local/php/bin/phpize
./configure --enable-memcache --with-php-config=/usr/local/php/bin/php-config --with-zlib-dir
make && make install
echo $?
cd ..
pkill php-fpm #杀死php-fpm进程
php-fpm #启动php-fpm
http://192.168.146.132/test.php能看到memcache模块就成功了
#测试PHP与memcached
vim /usr/local/nginx/html/callback.php
php
#访问http://1982.168.146.132/user2.html 此uri在memcached中不存在，就会回调到callback.php处理请求，结果如下：
Array
(
=> nobody
=> /
=> RESPONDER
=> /usr/local/nginx/html/callback.php
=>
=> GET
=>
=>
=> /callback.php
=> /user2.html
=> /callback.php
=> /usr/local/nginx/html
=> HTTP/1.1
=> http
=> CGI/1.1
=> nginx/1.12.1
=> 192.168.146.1
=> 14187
=> 192.168.146.132
=> 80
=> localhost
=> 200
=> 192.168.146.132
=> keep-alive
=> 1
=> Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
=> text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
=> gzip, deflate
=> zh-CN,zh;q=0.8
=> /callback.php
=> 1503552110
)
3、使用PHP让memcached链接MySQL查询key与value并存入memcached，
#接下来我们写个PHP程序，链接数据库，让memcached找不到的uri就回调给PHP，然后PHP去链接数据库，查找数据后给memcached：
cat html/callback.php
页:
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