一、系统及安装说明
系统：CentOS6.x_x64，memcached-1.5.3。memcached官方下载地址 http://www.memcached.org/files/memcached-1.5.3.tar.gz。libevent 库：https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
二、开始安装
1>首先yum安装gcc
yum install -y wget gcc
2>安装源码libevent库
#wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz #tar zxvf libevent-2.0.21-stable.tar.gz #./configure --prefix=/usr/local/libevent #make && make install
#检查是否安装成功
#输入： ls -al /usr/local/libevent/lib | grep libevent #如果输出为下所示则表示安装成功 lrwxrwxrwx 1 root root 21 Dec 4 18:08 libevent-2.0.so.5 -> libevent-2.0.so.5.1.9 -rwxr-xr-x 1 root root 968442 Dec 4 18:08 libevent-2.0.so.5.1.9 -rw-r--r-- 1 root root 1571130 Dec 4 18:08 libevent.a lrwxrwxrwx 1 root root 26 Dec 4 18:08 libevent_core-2.0.so.5 -> libevent_core-2.0.so.5.1.9 -rwxr-xr-x 1 root root 585057 Dec 4 18:08 libevent_core-2.0.so.5.1.9 -rw-r--r-- 1 root root 977914 Dec 4 18:08 libevent_core.a -rwxr-xr-x 1 root root 985 Dec 4 18:08 libevent_core.la lrwxrwxrwx 1 root root 26 Dec 4 18:08 libevent_core.so -> libevent_core-2.0.so.5.1.9 lrwxrwxrwx 1 root root 27 Dec 4 18:08 libevent_extra-2.0.so.5 -> libevent_extra-2.0.so.5.1.9 -rwxr-xr-x 1 root root 404772 Dec 4 18:08 libevent_extra-2.0.so.5.1.9 -rw-r--r-- 1 root root 593288 Dec 4 18:08 libevent_extra.a -rwxr-xr-x 1 root root 992 Dec 4 18:08 libevent_extra.la lrwxrwxrwx 1 root root 27 Dec 4 18:08 libevent_extra.so -> libevent_extra-2.0.so.5.1.9 -rwxr-xr-x 1 root root 950 Dec 4 18:08 libevent.la lrwxrwxrwx 1 root root 29 Dec 4 18:08 libevent_openssl-2.0.so.5 -> libevent_openssl-2.0.so.5.1.9 -rwxr-xr-x 1 root root 94209 Dec 4 18:08 libevent_openssl-2.0.so.5.1.9 -rw-r--r-- 1 root root 131836 Dec 4 18:08 libevent_openssl.a -rwxr-xr-x 1 root root 1021 Dec 4 18:08 libevent_openssl.la lrwxrwxrwx 1 root root 29 Dec 4 18:08 libevent_openssl.so -> libevent_openssl-2.0.so.5.1.9 lrwxrwxrwx 1 root root 30 Dec 4 18:08 libevent_pthreads-2.0.so.5 -> libevent_pthreads-2.0.so.5.1.9 -rwxr-xr-x 1 root root 18462 Dec 4 18:08 libevent_pthreads-2.0.so.5.1.9 -rw-r--r-- 1 root root 18702 Dec 4 18:08 libevent_pthreads.a -rwxr-xr-x 1 root root 1013 Dec 4 18:08 libevent_pthreads.la lrwxrwxrwx 1 root root 30 Dec 4 18:08 libevent_pthreads.so -> libevent_pthreads-2.0.so.5.1.9 lrwxrwxrwx 1 root root 21 Dec 4 18:08 libevent.so -> libevent-2.0.so.5.1.9
3>下载安装memcached
#wget #tar -zxvf memcached-1.5.3.tar.gz #./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent #make && make install #ln -s /usr/local/memcached/bin/memcached /usr/local/bin #建立软连接
三、编辑脚本加入启动项
1>脚本
vim cat /etc/init.d/memcached
#!/bin/sh
#
# memcached: MemCached Daemon
#
# chkconfig: - 90 25
# description: MemCached Daemon
# Source function library.
# Author: pkey san 2015/12/07
. /etc/rc.d/init.d/functions
. /etc/sysconfig/network
prog=memcached
pidfile=${PIDFILE-/var/run/memcached.pid}
start()
{
echo -n $"Starting memcached: "
daemon --pidfile=${pidfile} /usr/local/bin/memcached -u daemon -d -m 512 -l 127.0.0.1 -c 4096 -p 11211
echo `ps aux |grep memcached |grep 11211 |grep -v grep |awk '{print $2}'` >$pidfile
echo
}
stop()
{
echo -n $"Shutting down memcached: "
killproc $prog
echo
}
rh_status(){
status -p ${pidfile} $prog
}
[ -f /usr/local/bin/memcached ] || exit 0
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
rh_status
;;
restart|reload)
stop
start
;;
*)
echo $"Usage: $0 {start|stop|status|restart|reload|}"
exit 1
esac
exit 02>解释说明
daemon --pidfile=${pidfile} /usr/local/bin/memcached -u daemon -d -m 512 -l 127.0.0.1 -c 4096 -p 11211
-p memcached监听的TCP端口
-l 监听的ip地址，127.0.0.1是本机，当然也可以写上你的服务器IP，如：10.0.0.10，这是我服务器的IP地址，如果你需要多个服务器都能够读取这台memcached的缓存数据，那么就必须设定这个ip
-d 以daemon方式运行，将程序放入后台
-u memcached的运行用户
-P memcached的pid文件路径
-m memcached可以使用的最大内存数量
-c memcached同时可以接受的最大的连接数
如果你希望以socket方式来访问memcached，那么在启动的时候就必须去掉 -l和-p参数，并加上-s参数：
-s memcached的socket文件路径
3>添加开机启动
#chmod +x /etc/init.d/memcached #chkconfig --add memcached #chkconfig memcached on #service memcached start|stop|restart|reload|status
三、编译配置(第二种启动方式)
#安装好之后 ln -s /usr/local/memcached/bin/memcached /usr/bin/memcached /bin/cp scripts/memcached.sysv /etc/init.d/memcached sed -i 's@^USER=.*@USER=root@' /etc/init.d/memcached sed -i 's@chown@#chown@' /etc/init.d/memcached sed -i 's@/var/run/memcached/memcached.pid@/var/run/memcached.pid@' /etc/init.d/memcached sed -i 's@^prog=.*@prog="/usr/local/memcached/bin/memcached"@' /etc/init.d/memcached #前面有软链接，这里可以省略 chmod +x /etc/init.d/memcached chkconfig --add memcached chkconfig memcached on
此种方式也可以加到启动项里。
