一、安裝memcached
1、分別把memcached和libevent下載回來，放在/data/src目錄下
cd /data/src
wget https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz
wget http://www.memcached.org/files/memcached-1.4.34.tar.gz
2、先安裝libevent
tar zxvf libevent-2.1.8-stable.tar.gz
cd libevent-2.1.8-stable
./configure --prefix=/usr/
make
make install
3、測試libevent是否安裝成功
ll /usr/lib | grep libevent
lrwxrwxrwx 1 root root 21 Feb 14 10:42 libevent-2.1.so.6 -> libevent-2.1.so.6.0.2
-rwxr-xr-x 1 root root 1128436 Feb 14 10:42 libevent-2.1.so.6.0.2
-rw-r--r-- 1 root root 1817720 Feb 14 10:42 libevent.a
lrwxrwxrwx 1 root root 26 Feb 14 10:42 libevent_core-2.1.so.6 -> libevent_core-2.1.so.6.0.2
-rwxr-xr-x 1 root root 722476 Feb 14 10:42 libevent_core-2.1.so.6.0.2
-rw-r--r-- 1 root root 1194990 Feb 14 10:42 libevent_core.a
-rwxr-xr-x 1 root root 969 Feb 14 10:42 libevent_core.la
lrwxrwxrwx 1 root root 26 Feb 14 10:42 libevent_core.so -> libevent_core-2.1.so.6.0.2
lrwxrwxrwx 1 root root 27 Feb 14 10:42 libevent_extra-2.1.so.6 -> libevent_extra-2.1.so.6.0.2
-rwxr-xr-x 1 root root 426194 Feb 14 10:42 libevent_extra-2.1.so.6.0.2
-rw-r--r-- 1 root root 622802 Feb 14 10:42 libevent_extra.a
-rwxr-xr-x 1 root root 976 Feb 14 10:42 libevent_extra.la
lrwxrwxrwx 1 root root 27 Feb 14 10:42 libevent_extra.so -> libevent_extra-2.1.so.6.0.2
-rwxr-xr-x 1 root root 934 Feb 14 10:42 libevent.la
lrwxrwxrwx 1 root root 30 Feb 14 10:42 libevent_pthreads-2.1.so.6 -> libevent_pthreads-2.1.so.6.0.2
-rwxr-xr-x 1 root root 18502 Feb 14 10:42 libevent_pthreads-2.1.so.6.0.2
-rw-r--r-- 1 root root 18694 Feb 14 10:42 libevent_pthreads.a
-rwxr-xr-x 1 root root 997 Feb 14 10:42 libevent_pthreads.la
lrwxrwxrwx 1 root root 30 Feb 14 10:42 libevent_pthreads.so -> libevent_pthreads-2.1.so.6.0.2
lrwxrwxrwx 1 root root 21 Feb 14 10:42 libevent.so -> libevent-2.1.so.6.0.2
ok，安裝成功了
4、安裝memcached，同時需要安裝中指定libevent的安裝位置
tar zxvf memcached-1.4.34.tar.gz
cd memcached-1.4.34
./configure --with-libevent=/usr/
make
make install
如果中間出現報錯，請仔細檢查錯誤信息，按照錯誤信息來配置或者增加相應的庫或者路徑。
安裝完成後會把memcached放到 /usr/local/bin/memcached
5、測試是否成功安裝memcached
ll /usr/local/bin/mem*
-rwxr-xr-x 1 root root 456873 Feb 14 10:43 /usr/local/bin/memcached
二、啓動memcached
1、啓動memcached服務器端
/usr/local/bin/memcached -d -m 10 -u root -l 10.132.162.106 -p 11211-c 256 -P /usr/local/memcached/memcached.pid
-d選項是啓動一個守護進程，
-m是分配給Memcache使用的內存數量，單位是MB，我這裏是10MB，
-u是運行Memcache的用戶，我這裏是root，
-l是監聽的服務器IP地址，如果有多個地址的話，我這裏指定了服務器的IP地址192.168.0.200，
-p是設置Memcache監聽的端口，我這裏設置了12000，最好是1024以上的端口，
-c選項是最大運行的併發連接數，默認是1024，我這裏設置了256，按照你服務器的負載量來設定，
-P是設置保存Memcache的pid文件，我這裏是保存在 /tmp/memcached.pid，
2.如果要結束Memcache進程，執行
kill `cat /tmp/memcached.pid`
也可以啓動多個守護進程，不過端口不能重複
三、測試memcached
[root@jstwgm7vr6c8s3 local]# telnet 10.132.162.106 11211
Trying 10.132.162.106...
Connected to 10.132.162.106.
Escape character is '^]'.
set key1 0 60 4
1234
STORED
get key1
VALUE key1 0 4
1234
END