Memcached 安裝與配置

Memcached 安裝與配置

最新的穩定版: wget http://monkey.org/~provos/libevent-1.4.14b-stable.tar.gz

wget http://memcached.googlecode.com/files/memcached-1.4.5.tar.gz

wget http://pecl.php.net/get/memcache-1.4.tgz （最好是根據相應的版原本選擇）

安裝libevent

tar zxvf libevent-1.4.14b-stable.tar.gz

cd libevent-1.4.14b-stable

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

make

make install

安裝memcached

tar zxvf memcached-1.4.5.tar.gz -C /usr/src

cd /usr/src/memcached-1.4.5

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

make && make install

運行memcached

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

#說明：

#   -d 設置 memcached 能夠使用的內存大小，單位爲 M ；

#    -l 設置監聽的 IP 地址，若是是本機的話，一般能夠不設置此參數 ；

#    -p 設置監聽的端口，默認爲 11211，因此也能夠不設置此參數；

#    -u 指定用戶;

#若是遇到運行memcached時遇到問題，錯誤提示以下：

#    /usr/local/servers/memcached/bin/memcached: error while loading shared libraries: libevent-1.4.so.2: cannot open shared object file: No such file or directory

則運行 LD_DUBUG=libs 就能夠知道memcached啓動時庫的加載路徑。具體以下:

# 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:

而後給libevent-1.4.so.2創建一個連接後再運行memcached：
# ln -s /usr/local/servers/libevent/lib/libevent-1.4.so.2 /lib/libevent-1.4.so.2

安裝php的memcache擴展

能夠使用自帶的pecl安裝程序

#/usr/local/php/bin/pecl install memcache

#從源碼安裝

#    tar zxvf memcache-1.4.tgz -C /usr/src

#    cd /usr/src/memcached-1.4

#    ./configure --prefix=/usr/local/memcache --enable-memcache --with-php-config=/usr/local/php/bin/php-config --with-zlib-dir

#    make &&　make install

#安裝完後會有相似這樣的提示：

#Installing shared extensions: /usr/local/servers/php5/lib/php/extensions/no-debug-non-zts-20060922/

#把這個記住，而後修改php.ini，

# vim /etc/php.ini

extension_dir = "./"
修改成
extension_dir = "/usr/local/php/lib/php/extensions/"

重啓php-fpm

/etc/rc.d/init.d/php-fpm restart

重啓nginx

/usr/local/nginx/sbin/nginx -s reload

php裏使用phpinfo()看到以下信息說明memcached擴展才算安裝好！