memcached 安装文档

 所需软件

libevent-2.0.6-rc.tar.gz (http://monkey.org/~provos/libevent/) 
memcache-2.2.5.tgz (http://pecl.php.net/package/memcache)  用于安装php的扩展
memcached-1.4.0.tar.gz (http://www.danga.com/memcached/)

 

libevent-2.0.6-rc.tar.gz (http://monkey.org/~provos/libevent/) 
memcache-2.2.5.tgz (http://pecl.php.net/package/memcache)  用于安装php的扩展
memcached-1.4.0.tar.gz (http://www.danga.com/memcached/)

 

 

 

下载后全部放置在/var/software/下

 

tar zxvf 解压缩有文件

 

1.首先安装libevent，不然memcached可是不能装的

 

cd libevent-2.0.6-rc

./configure --prefix=/usr/local/libevent

make

make install

 

2.接着安装memcached

 

cd memcached-1.4.0

./configure --prefix=/usr/local/memcached -width-libevent=/usr/local/libevent

make

make install

 

3.启动memcached

 

 /usr/local/servers/memcached -d -m 128 -l localhost -p 11211 -u root

-d 以守护程序（daemon）方式运行 memcached；
-m 设置 memcached 可以使用的内存大小，单位为 M；
-l 设置监听的 IP 地址，如果是本机的话，通常可以不设置此参数；
-p 设置监听的端口，默认为 11211，所以也可以不设置此参数；
-u 指定用户;

 

启动会遇到问题：error while loading shared libraries: libevent-2.0.so.2: cannot open shared object file: No such file or directory

 

 

别人说要这么干

 

则运行 LD_DUBUG=libs 就可以知道memcached启动时库的加载路径。具体如下:

# LD_DEBUG=libs /usr/local/servers/memcached/bin/memcached -v
     10929:     find library=libevent-1.4.so.2 [0]; searching
     10929:      search cache=/etc/ld.so.cache
     10929:      search path=/lib/tls/i686/sse2:/lib/tls/i686:/lib/tls/sse2:/lib/tls:/lib/i686/sse2:/lib/i686:/lib/sse2:/lib:/usr/lib/tls/i686/sse2:/usr/lib/tls/i686:/usr/lib/tls/sse2:/usr/lib/tls:/usr/lib/i686/sse2:/usr/lib/i686:/usr/lib/sse2:/usr/lib          (system search path)
     10929:       trying file=/lib/tls/i686/sse2/libevent-1.4.so.2
     10929:       trying file=/lib/tls/i686/libevent-1.4.so.2
     10929:       trying file=/lib/tls/sse2/libevent-1.4.so.2
     10929:       trying file=/lib/tls/libevent-1.4.so.2
     10929:       trying file=/lib/i686/sse2/libevent-1.4.so.2
     10929:       trying file=/lib/i686/libevent-1.4.so.2
     10929:       trying file=/lib/sse2/libevent-1.4.so.2
     10929:       trying file=/lib/libevent-1.4.so.2
     10929:       trying file=/usr/lib/tls/i686/sse2/libevent-1.4.so.2
     10929:       trying file=/usr/lib/tls/i686/libevent-1.4.so.2
     10929:       trying file=/usr/lib/tls/sse2/libevent-1.4.so.2
     10929:       trying file=/usr/lib/tls/libevent-1.4.so.2
     10929:       trying file=/usr/lib/i686/sse2/libevent-1.4.so.2
     10929:       trying file=/usr/lib/i686/libevent-1.4.so.2
     10929:       trying file=/usr/lib/sse2/libevent-1.4.so.2
     10929:       trying file=/usr/lib/libevent-1.4.so.2
     10929:

然后给libevent-1.4.so.2建立一个链接后再运行memcached：
# ln -s /usr/local/servers/libevent/lib/libevent-1.4.so.2 /lib/libevent-1.4.so.2

  

但是我的机器不好使，直接ln -s /usr/local/servers/libevent/lib/libevent-2.0.so.2 /lib/libevent-2.0.so.2

 

4.安装php memcache扩展

 

可以使用php自带的pecl安装程序
# /usr/local/servers/php5/bin/pecl install memcache

cd memcache-2.2.5
/usr/local/php/bin/phpize
./configure –enable-memcache –with-php-config=/usr/local/php/bin/php-config –with-zlib-dir
make
make install

上述安装完后会有类似这样的提示：

Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/

找到php.ini 我的在/uar/local/php/lib/下面（其实是个软连接，指向：/usr/local/Zend/etc/php.ini）

把php.ini中的extension_dir = “./”修改为

extension_dir = “/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/”

添加一行来载入memcache扩展：extension=memcache.so

然后service httpd stop

然后查看phpinfo();

如有即可