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一、编译环境的准备 yum install gcc yum install gcc-c++ libstdc++-devel yum install zlib-devel 二、源码包准备 wget http://monkey.org/~provos/libevent-1.4.14b-stable.tar.gz wget http://memcached.googlecode.com/files/memcached-1.4.15.tar.gz 三、安装与配置 1、安装libevent tar zxvf libevent-1.4.14b-stable.tar.gz cd libevent-1.4.14b-stable ./configure --prefix=/usr/local/libevent/ make && make install ln -s /usr/local/libevent/lib/libevent-1.4.so.2 /lib/libevent-1.4.so.2 2、安装Memcached tar zxvf memcached-1.4.15.tar.gz cd memcached-1.4.15 ./configure --prefix=/usr/local/memcached/ --with-libevent=/usr/local/libevent/ make && make install 3、启动Memcached /usr/local/memcached/bin/memcached -d -m 64 -u root -l 127.0.0.100 -p 11211 -c 128 -P /tmp/memcached.pid 4、为了方便管理，写个SHELL脚本。 # http://blog.phpha.com # 以下内容摘自互联网 vi /etc/rc.d/init.d/memcached #!/bin/sh # # memcached: MemCached Daemon # chkconfig: - 90 25 # deion: MemCached Daemon # Source function library. . /etc/rc.d/init.d/functions . /etc/sysconfig/network #[ ${NETWORKING} = "no" ] && exit 0 #[ -r /etc/sysconfig/dund ] || exit 0 #. /etc/sysconfig/dund #[ -z "$DUNDARGS" ] && exit 0 start() { echo -n $"Starting memcached: " daemon $MEMCACHED -u daemon -d -m 64 -l 127.0.0.100 -p 11211 -c 128 -P /tmp/memcached.pid echo } stop() { echo -n $"Shutting down memcached: " killproc memcached echo } MEMCACHED="/usr/local/memcached/bin/memcached" [ -f $MEMCACHED ] || exit 1 # See how we were called. case "$1" in start) start ;; stop) stop ;; restart) stop sleep 3 start ;; *) echo $"Usage: $0 {start|stop|restart}" exit 1 esac exit 0 5、添加Memcached开机启动 cd /etc/rc.d/init.d/ chmod 777 memcached chkconfig --add memcached chkconfig --level 235 memcached on chkconfig --list | grep memcached 6、Memcached使用 service memcached start service memcached stop service memcached restart 四、PHP安装Memcache扩展(memcache与memcached扩展二选一即可，建议安装下面的memcached) [root~] wget -c http://pecl.php.net/get/memcache-3.0.8.tgz [root~] tar -zxvf memcache-3.0.8.tgz [root~] cd memcache-3.0.8 [root~] /usr/local/php/bin/phpize [root~] ./configure --with-php-config=/usr/local/php/bin/php-config --enable-memcache --with-zlib-dir [root~] make && make install /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/memcache.so [root~] vim /usr/local/php/etc/php.ini extension = /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/memcache.so session.save_handler = memcache session.save_path = "tcp://127.0.0.100:11211" [root~] service php-fpm reload php5.5+版本的memcache扩展安装方法： 因为php5.5+版本内置了memcache扩展 所以无需下载第三方插件直接 执行如下操作即可 cd /usr/local/php/bin ./pecl install memcache 安装时会提示是否开启session支持，根据需要输入no 或者 yes，安装后路径如下： /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/memcache.so 需要手动配置到php.ini中，增加如下内容，即表示启用memcache扩展： extension=memcache.so 补充：PHP的Memcache扩展的安装后发现一个问题，SESSION会出现丢失，这可能是安装Memcached服务端的时候，防火墙没有添加11211端口，修改防火墙规则后，一切正常。 五、PHP memcached 扩展的安装（注意这里是memcached非memcache） wget https://launchpad.net/libmemcached/1.0/1.0.16/+download/libmemcached-1.0.16.tar.gz tar -zxvf libmemcached-1.0.16.tar.gz cd libmemcached-1.0.16 ./configure --prefix=/usr/local/libmemcached --with-memcached make && make install wget http://pecl.php.net/get/memcached-2.2.0.tgz tar zxvf memcached-2.2.0.tgz cd memcached-2.2.0 /usr/local/php/bin/phpize ./configure --with-php-config=/usr/local/php/bin/php-config make && make install vi /usr/local/php/etc/php.ini 加上extension=memcached.so重起一下服务就可以了。 六、PHP项目分布式使用Memcache同步SESSION的几种方法 1、直接修改php.ini配置文件 session.save_handler = memcache session.save_path = "tcp://127.0.0.100:11211" 2、利用目录下的 .htaccess 文件 php_value session.save_handler "memcache" php_value session.save_path "tcp://127.0.0.1:11211" 3、项目中修改配置 ini_set("session.save_handler", "memcache"); ini_set("session.save_path", "tcp://127.0.0.100:11211"); 上面只是一些简单的说明，一般来说做分布式是有服务器权限的，所以推荐第一种 (责任编辑：IT) |