Memcached 源码安装

一、 Memcached yum安装
(1) 安装 libevent： 轻量级的开源高性能事件通知库
yum install -y libevent
(2) 安装Memcached：
yum install -y memcached
systemctl start memcached
ps -aux |grep memcached |grep -v grep
(3)测试Memcached启动是否连接
#telnet 192.168.79.28 11211
Trying 192.168.79.28…
Connected to 192.168.79.28 (192.168.79.28).
Escape character is ‘^]’.
//保存，向 test 中存入数据
set test 0 0 10
test_value
STORED
//取回，取出 test 中保存的数据
get test
VALUE test 0 10
test_value
END
quit
Connection closed by foreign host.
(4)安装Apache
yum install -y httpd
(5)安装MariaDB数据库
yum -y install mariadb-server mariadb
(6)安装PHP
yum -y install php php-mysql php-gd php-pecl-memcache
(7) 设置memcached 与php扩展
php.ini 添加如下一行代码来载入 Memcache 扩展
extension = memcache.so
注意：如果是源码安装的 php，需要修改 extension_dir = “/usr/lib64/php/modules”
(8)设置防火墙
Centos7下的防火墙已经由iptables改为firewall，使用firewall-cmd命令开放80及443端口:
firewall-cmd –permanent –zone=public –add-service=http
firewall-cmd –permanent –zone=public –add-service=https
firewall-cmd –reload
二、 Memcached 源码安装
1.安装libevent
网站：http://libevent.org/
wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
解压： tar -xf libevent-2.0.21-stable.tar.gz
./configure –prefix=/usr/local/libevent
make && make install
2.安装memcached
网站：http://memcached.org/
wget http://www.memcached.org/files/memcached-1.5.4.tar.gz
解压： tar -xf memcached-1.5.4.tar.gz
./configure –prefix=/usr/local/memcached –with-libevent=/usr/local/libevent/
make && make install
2.1 启动 Memcached
/usr/local/memcached/bin/memcached -m 32m -p 11211 -d -u root -P /usr/local/memcached/memcached.pid -c 256
netstat -lntup |grep 11211
2.2配置PATH

cat /etc/profile.d/memcached.sh

export PATH=$PATH:/usr/local/memcached/bin 2.3添加用户名： useradd -u 995 -c “Memcached daemon” -d /run/memcached -s /sbin/nologin -r memcached chown -R memcached：memcached /usr/local/memcached/ 2.4配置启动服务脚本： [Unit] Description=Memcached Before=httpd.service After=network.target [Service] Type=simple EnvironmentFile=-/etc/sysconfig/memcached ExecStart=/usr/local/memcached -u$USER -p $PORT -m$CACHESIZE -c $MAXCONN$OPTIONS
[Install]
WantedBy=multi-user.target
2.5配置服务脚本
cat /etc/sysconfig/memcached
PORT=”11211”
USER=”memcached”
MAXCONN=”1024”
CACHESIZE=”64”
OPTIONS=””
3.安装php安装memcached扩展模块(需要安装PHP环境 )
网站：http://pecl.php.net/package/memcache
wget http://pecl.php.net/get/memcache-2.2.7.tgz
解包：tar -zxf memcached-2.2.0.tgz
cd memcache-2.2.7
phpize 备注：phpize 需要php-devel包，并必须进入 memcache-2.2.7 目录 这个命令在编译安装php时会在安装目录下的bin目录下，
查找 php-config which php-config find / -name php-config
./configure –enable-memcache –with-php-config=/usr/bin/php-config

       ./configure --with-php-config=/usr/bin/php-config  --with-libmemcached-dir=/usr/local/libmemcached

make && make install
安装后会提示：/usr/lib64/php/modules/
./configure – enable- - memcache
安装完成后需要在php.ini文件中添加一条extension=memcached.so的记录，然后使用php -m命令可以看到有memcached模块了。