memcached安装

libevent下载地址：http://libevent.org/

wget http://cloud.github.com/downloads/libevent/libevent/libevent-2.0.19-stable.tar.gz
tar zxf libevent-2.0.19-stable.tar.gz
cd libevent-2.0.19-stable
./configure --prefix=/usr/local/libevent
make && make install
cd ..

memcached下载地址：https://code.google.com/p/memcached/downloads/list

wget http://memcached.googlecode.com/files/memcached-1.4.14.tar.gz
tar zxf memcached-1.4.14.tar.gz
cd memcached-1.4.14
./configure --prefix=/usr/local/memcached  --with-libevent=/usr/local/libevent/
make && make install
echo "/usr/local/memcached/bin/memcached -d -u root -m 1024" >>/etc/rc.local
reboot
netstat -lantp

 

memcached的基本设置启动Memcache的服务器端：#  /usr/local/bin/memcached -d -m 10 -u root -l 127.0.0.1 -p 12000 -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，我这里是10MB，-u 是运行Memcache的用户，我这里是root，-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127.0.0.1，-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，如果启动过程中报错，“/usr/local/bin/memcached: error while loading shared  libraries: libevent-1.3.so.1: cannot open shared object file: No such file or  directory” 使用LD_DEBUG=help ./memcached -v来确定  加载的类库路径方法如下:#LD_DEBUG=libs /usr/local/bin/memcached -v 2>&1 >  /dev/null | less根据反馈我们可以看到，memcached会到很多地方去找 libevent-1.3.so.1  类库，所以根据需求，我们只需建一个软链接，指定到我们安装的类库上即可方法如下：#ln -s  /usr/local/libevent/lib/libevent-1.3.so.1  /lib64/libevent-1.3.so.1设置开启启动memcache把  /usr/local/bin/memcached -d -m 10 -u root -l 127.0.0.1 -p 12000 -c 256 -P  /tmp/memcached.pid 加入到/etc/rc.local中如果要结束Memcache进程，执行：# kill cat  '/tmp/memcached.pid‘获取memcache运行状态# echo stats | nc 127.0.0.1 12000#  watch "echo stats | nc 127.0.0.1 12000" (实时状态)快速清空# echo "flush_all" | nc 127.0.0.1 12000