1、安装libevent

#tar zxvf libevent-1.4.14b-stable.tar.gz #cd libevent-1.4.14b-stable #./configure #make && make install

2、安装memcached

#tar zxvf memcached-1.2.5.tar.tar #cd memcached-1.2.5 #./configure –prefix=/usr/local/memcached #make && make install

3、安装python-memcached安装

#yum install python-memcache

memcached运行参数：

memcached -u wangande -d -m 64 -l 127.0.0.1 -p 11211 -c 256  -P /tmp/memcached.pid

-u是运行Memcache的用户

-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，我这里是10MB，-l是监听的服务器IP地址，如果有多个地址的话，我这里指定了服务器的IP地址192.168.22.200(不指定为本机)-p是设置Memcache监听的端口，我这里设置了12000，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，我这里设置了256，按照你服务器的负载量来设定，-P是设置保存Memcache的pid文件，我这里是保存在 /tmp/memcached.pid，

4、查看memcashed是否正常启动

ps -ef | grep 'memcached' | grep -v grep

5、运行python环境进行测试

>>> import memcache

>>> mc = memcache.Client(['127.0.0.1:11211'], debug=0)

>>> mc.set('key1', 'key1_value')

True

>>> mc.get('key1')

'key1_value'

>>> dict = {'key2':'key2_value', 'key3':'key3_value'}

>>> mc.set_multi(dict)

[]

>>> list = ['key2','key1','key3']

>>> mc.get_multi(list)

{'key3': 'key3_value', 'key2': 'key2_value', 'key1': 'key1_value'}

>>> mc.set('key5',1)

True

>>> mc.get('key5')

1

>>> mc.incr('key5')

2

>>> mc.incr('key5', 2)

4

>>> mc.get('key5')

4

6、编写memcached类

import memcache

class memcache_box_config_status():     '''     定义memcached类，方便操作     '''    def __init__(self):        self.mc = memcache.Client(['127.0.0.1:11211'], debug=0)    def batch_write_memcache(self, dict_obj={}):        self.mc.set_multi(dict_obj)    def write_memcache(self, key, value):        self.mc.set(str(key), value)    def read_memcache(self, key):        return self.mc.get(str(key))    def cache_value_incr(self, key, delta=1):        self.mc.incr(key, delta)    def batch_read_memcache(self, keys=[]):        #DBG('batch_read_key:%s' %str(keys))        return self.mc.get_multi(keys)    def __del__(self):        self.mc.disconnect_all()