memcached高缓存搭建
搭建服务端和客户端，让服务端去链接客户端
web客户端：192.168.247.161
服务端：192.168.247.160
[root@localhost ~]# hostnamectl set-hostname client
[root@localhost ~]# su
[root@client ~]# [root@nginx ~]# hostnamectl set-hostname server
[root@nginx ~]# su
[root@server ~]# 搭建服务端
部署libevent 事件通知库
[root@server ~]# mkdir /abc
mkdir: cannot create directory ‘/abc’: File exists
[root@server ~]# mount.cifs //192.168.254.10/linuxs /abc
Password for root@//192.168.254.10/linuxs:
[root@server ~]# cd /abc
[root@server abc]# tar zxvf libevent-2.1.8-stable.tar.gz -C /opt
[root@server abc]# tar zxvf memcached-1.5.6.tar.gz -C /opt
[root@server abc]# cd /opt
[root@server opt]# ls
data libevent-2.1.8-stable memcached-1.5.6 nginx-1.12.2 rh
[root@server opt]# cd libevent-2.1.8-stable/
[root@server libevent-2.1.8-stable]# yum install gcc gcc-c++ make -y
[root@server libevent-2.1.8-stable]# ./configure --prefix=/usr/local/libevent
[root@server libevent-2.1.8-stable]# make && make installlibevent安装完毕，接下来安装memcached
[root@server libevent-2.1.8-stable]# cd /opt/memcached-1.5.6/
[root@server memcached-1.5.6]# ./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent
[root@server memcached-1.5.6]# make && make install
[root@server memcached-1.5.6]# ln -s /usr/local/memcached/bin/* /usr/local/bin/命令注释：
- -d 指定守护进程
- -m 32m 指定缓存32兆
- -p 11211 指定端口
- -u root 指定用户管理
[root@server memcached-1.5.6]# memcached -d -m 32m -p 11211 -u root [root@server memcached-1.5.6]# netstat -natp | grep memc tcp 0 0 0.0.0.0:11211 0.0.0.0:* LISTEN 115996/memcached tcp6 0 0 :::11211 :::* LISTEN 115996/memcached [root@server memcached-1.5.6]# systemctl stop firewalld [root@server memcached-1.5.6]# setenforce 0先在本地连接这个缓存数据库，看看是否可以正常连接
[root@server memcached-1.5.6]# yum install telnet -y [root@server memcached-1.5.6]# telnet 127.0.0.1 11211 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'.add 添加
键值名称 username
0 代表不设置序列号
0 无时间要求，不设置过期时间
7 字节长度，接下来如果输入的字节长度不符合要求，就会报错add username 0 0 7 1234567 STORED add users 0 0 7 123 STORED ERROR查看输入的键值
get username VALUE username 0 7 1234567 ENDvalue 后面的1 是更新因子，如果更新一次，就会自加一
gets username VALUE username 0 7 1 1234567 ENDset username 0 0 8 12345678 STORED gets username VALUE username 0 8 3 12345678 ENDreplace 是更新的意思，如果当前的键值名称不存在，就会更新失败
set 也是更新的意思，如果当前的键值名称不存在，会新建一个键值replace school 0 0 2 NOT_STORED get school END replace username 0 0 9 123456789 STORED gets username VALUE username 0 9 4 123456789 ENDcas 更新，依据更新因子进行更新，相同则更新
cas username 0 0 7 4 1234567 STORED gets username VALUE username 0 7 5 1234567 END cas username 0 0 8 2 12345678 EXISTS gets username VALUE username 0 7 5 1234567 END键值后追加数据
append username 0 0 4 appe STORED get username VALUE username 0 11 1234567appe END键值前追加数据
prepend username 0 0 5 prepe STORED get username VALUE username 0 16 prepe1234567appe END删除键值
delete username DELETED get username ENDstats 显示状态信息
清除所有缓存数据 flush_allflush_all OK get users END退出：quit
quit Connection closed by foreign host. [root@server memcached-1.5.6]#下一步安装客户端，安装客户端首先要部署LAMP架构环境，LAMP架构部署详细过程可查看博客：https://blog.51cto.com/14557905/2458323
LAMP安装完毕，接下来安装memcacahe客户端
[root@client abc]# yum install autoconf -y
[root@client htdocs]# cd /abc
[root@client abc]# tar zxvf memcache-2.2.7.tgz -C /opt
[root@client abc]# cd /opt
[root@client opt]# ls
httpd-2.4.29 memcache-2.2.7 mysql-5.6.26 package.xml php-5.6.11 rh
[root@client opt]# cd memcache-2.2.7/
[root@client memcache-2.2.7]# ls
config9.m4 example.php memcache.php memcache_standard_hash.c
config.m4 memcache.c memcache_queue.c php_memcache.h
config.w32 memcache_consistent_hash.c memcache_queue.h README
CREDITS memcache.dsp memcache_session.c
[root@client memcache-2.2.7]# [root@client memcache-2.2.7]# /usr/local/php5/bin/phpize
[root@client memcache-2.2.7]# ls
acinclude.m4 config.sub Makefile.global memcache_standard_hash.c
aclocal.m4 configure memcache.c missing
autom4te.cache configure.in memcache_consistent_hash.c mkinstalldirs
build config.w32 memcache.dsp php_memcache.h
config9.m4 CREDITS memcache.php README
config.guess example.php memcache_queue.c run-tests.php
config.h.in install-sh memcache_queue.h
config.m4 ltmain.sh memcache_session.c
[root@client memcache-2.2.7]# ./configure --enable-memcache --with-php-config=/usr/local/php5/bin/php-config
[root@client memcache-2.2.7]# make && make install
[root@client memcache-2.2.7]# vim /usr/local/php5/php.ini
736 ; extension_dir = "ext"
737 extension_dir="/usr/local/php5/lib/php/extensions/no-debug-zts-20131226/" #增加
738 extension = memcache.so #增加在web客户端去检测服务端是否可以连接
[root@client memcache-2.2.7]# cd /usr/local/httpd/htdocs/
[root@client htdocs]# ls
index.php
[root@client htdocs]# vim gsy.php
<?php
$memcache = new Memcache();
$memcache->connect('192.168.247.160',11211);
$memcache->set('key','Memcache test Successfull',0,60);
$result = $memcache->get('key');
unset($memcache);
echo $result;
?>
[root@client htdocs]# service httpd restart接下来就可以在浏览器上查看了