centos6.5 Memcache的安装

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Memcache的安装

1.分别下载memcached和libevent

Wget http://memcached.org/files/memcached-1.4.25.tar.gz

wget https://cloud.github.com/downloa ... .0.21-stable.tar.gz

2.先安装libevent：
# tar zxvf libevent-2.0.21-stable.tar.gz

# cd libevent-2.0.21-stable
# ./configure --prefix=/usr
# make
# make install

3.测试libevent是否安装成功

ls -al /usr/lib |grep libevent

4.安装memcached，同时需要安装中指定libevent的安装位置：
# tar zxvf memcached-1.2.0.tar.gz
# cd memcached-1.2.0
# ./configure --with-libevent=/usr
# make
# make install

5.测试是否成功安装memcached：
# ls -al /usr/local/bin/mem*

6.启动memcached

/usr/local/bin/memcached -d -m 10 -u memcache -p 11211 -c 256 -P /tmp/memcached.pid

-d选项是启动一个守护进程，
-m是分配给Memcache使用的内存数量，单位是MB
-u是运行Memcache的用户，我这里是root，
-l是监听的服务器IP地址

-p是设置Memcache监听的端口，最好是1024以上的端口，
-c选项是最大运行的并发连接数，默认是1024，按照你服务器的负载量来设定，
-P是设置保存Memcache的pid文件

测试：

#Telnet localhost 11211

Trying 127.0.0.1...

Connected to localhost.

Escape character is '^]'.

#set test 0 0 10

#test_value

STORED

#get test

VALUE test 0 10

test_value

END

#quit

Connection closed by foreign host.

7.关闭memcached

kill `cat /tmp/memcached.pid`

安装memcache的php扩展

1.下载memcache:

wget http://pecl.php.net/get/memcache-2.2.7.tgz

2.安装PHP的memcache扩展

tar vxzf memcache-2.2.7.tgz
cd memcache-2.2.7
/usr/local/php/bin/phpize （yum安装的php执行/usr/bin/phpize）
./configure –enable-memcache --with-php-config=/usr/local/php/bin/php-config --with-zlib-dir  （yum安装的php执行 ./configure --enable-memcache --with-php-config=/usr/bin/php-config --with-zlib-dir)
make
make install

若没有phpize命令 yum install php-devel

3.上述安装完后会有类似这样的提示：

Installing shared extensions: /usr/lib64/php/modules/

4.修改/etc/php.ini

extension_dir = "/usr/lib64/php/modules/"

extension=memcache.so

5.重新启动apache，启动memcached

service httpd restart

运行下面的php文件，如果有输出hello world!,表示环境搭建成功

<?php

$mem = new Memcache;

$mem->connect('127.0.0.1',11211);

$mem->set('test','hello world!',0,10);

$val = $mem->get('test');

echo $val;

?>