安装libevent

可以访问libevent.org/old-release…，查看相关版本
我这边就安装：libevent-2.0.21

下载文件开始安装

1、先进入local下，开始下载

cd /usr/local

2、下载libevent

wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz

3、解压

tar -zxvf libevent-2.0.21-stable.tar.gz

4、进入目录

cd libevent-2.0.21-stable/

5、配置

./configure --prefix=/usr/local/libevent-2.0.21-stable

6、安装

make
make install

7、检查是否安装成功

安装memcached

1、查看memcached版本

github.com/memcached/m…
我这边就选择当前最新版本：memcached-1.6.13.tar.gz

2、进入local文件，下载当前最稳定版本,并解压

cd /usr/local
wget https://memcached.org/files/memcached-1.6.13.tar.gz
tar -zxvf memcached-1.6.13.tar.gz

3、进入目录配置并安装

cd memcached-1.6.13
./configure -with-libevent=/usr/local/libevent-2.0.21-stable --prefix=/usr/local/memcached-1.6.13
make
make install

4、启动一下看下是否安装成功

/usr/local/memcached-1.6.13/bin/memcached -d -m 1028 -p 11211 -u root
ps -ef | grep memcached

5、配置开机启动

5-1、编写文件

vim /etc/init.d/memcached

#! /bin/sh
#
# chkconfig: - 55 45
# description:  The memcached daemon is a network memory cache service.
# processname: memcached
# config: /etc/sysconfig/memcached
 
# Source function library.
. /etc/rc.d/init.d/functions
 
PORT=11211
USER=nobody
MAXCONN=1024
CACHESIZE=64
OPTIONS=""
 
if [ -f /etc/sysconfig/memcached ];then
    . /etc/sysconfig/memcached
fi
 
# Check that networking is up.
if [ "$NETWORKING" = "no" ]
then
    exit 0
fi
 
RETVAL=0
prog="memcached"
 
start () {
    echo -n $"Starting $prog: "
    # insure that /var/run/memcached has proper permissions
    chown $USER /usr/local/memcached-1.6.13
    daemon /usr/local/memcached-1.6.13/bin/memcached -d -p $PORT -u $USER  -m $CACHESIZE -c $MAXCONN -P /usr/local/memcached-1.6.13/memcached.pid $OPTIONS
    RETVAL=$?
    echo
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/memcached
}
stop () {
    echo -n $"Stopping $prog: "
    killproc memcached
    RETVAL=$?
    echo
    if [ $RETVAL -eq 0 ] ; then
        rm -f /var/lock/subsys/memcached
        rm -f /usr/local/memcached-1.6.13/memcached.pid
    fi
}
 
restart () {
    stop
    start
}
 
 
# See how we were called.
case "$1" in
    start)
        start
        ;;
    stop)
    stop
    ;;
    status)
    status memcached
    ;;
    restart|reload)
    restart
    ;;
    condrestart)
    [ -f /usr/local/memcached-1.6.13 ] && restart || :
    ;;
    *)
    echo $"Usage: $0 {start|stop|status|restart|reload|condrestart}"
    exit 1
esac
 
exit $?

$\color{red}{如果安装目录和我的不一样，一定要记住修改里面memcached的路径}$

5-2 赋予执行权限

chmod 755 /etc/init.d/memcached

5-3、将memcached加入系统服务

chkconfig --add memcached
chkconfig memcached on

5-4、启动memcached服务

先关闭刚刚启动的服务
service memcached stop
再进行启动
service memcached start

$\color{red}{注意：如果其他ip需要连接，记得关闭防火墙}$

memcached基本操作

安装/打开telnet

1、linux使用telnet，如果本机没有安装，需要先安装telnet
yum install -y telnet
2、windows使用telnet
控制面板->程序和功能->启动或关闭Windows功能->给telnet打钩

存储基本命令

命令格式：
<command name> <key> <flags> <exptime> <bytes>
参数说明:\

关键字	说明
command name	set/add/replace
key	查找key
flags	客户机使用它存储关于键值对的额外信息
exptime	该数据的存活时间，0表示永远
bytes	存储字节数
data block	存储的数据块（可直接理解为key-value结构中的value）