centos7安装memcached及配置等

怼烎@ 2022-05-19 06:19 199阅读 0赞

linux下配置使用memcache功能，比win下稍微复杂一点，主要包括：安装libevent函数库、安装memcached、配置php扩展。

**一、安装libevent函数库**   
libevent各版本地址：[http://libevent.org/old-releases.html][http_libevent.org_old-releases.html]   
在此我安装当前最稳定版本：libevent-2.0.21   
1.下载：`#wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz`   
2.解压：`#tar -zxvf libevent-2.0.21-stable.tar.gz`   
3 配置及编译安装：

#cd ibevent-2.0.21-stable
    #./configure --prefix=/usr/local/libevent-2.0.21-stable 
    #make
    #make install

*  (我安装到了/usr/local/libevent-2.0.21-stable/下)

4.检查是否安装成功：

#ls -al /usr/local/libevent-2.0.21-stable/lib | grep libevent

![这里写图片描述][20161101191205358]

**二、安装memcached**

memcached各版本下载地址：[https://github.com/memcached/memcached/wiki/ReleaseNotes][https_github.com_memcached_memcached_wiki_ReleaseNotes]   
在此我安装当前最稳定版本： memcache-1.5.9   
1.下载：`#wget http://memcached.org/files/memcached-`1.5.9`.tar.gz`   
2.解压：`#tar -zxvf memcached-`1.5.9`.tar.gz`   
3. 配置及编译安装：

#cd memcached-1.4.32
    #./configure -with-libevent=/usr/local/libevent-2.0.21-stable/ --prefix=/usr/local/memcached-1.5.9
    #make
    #make install

(同样安装到了/usr/local/memcached-1.5.9/下)   
4.查看是否安装成功：   
![这里写图片描述][20161101200259656]

5.安装成功后启动一下看安装是否成功

\# /usr/local/memcached-1.5.9/bin/memcached -d -m 1028 -p 11211 -u root

\# ps -ef|grep memcached

![70][]

6、配置开机自启动

\#  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/java/memcached-1.5.9
        daemon /usr/local/java/memcached-1.5.9/bin/memcached -d -p $PORT -u $USER  -m $CACHESIZE -c $MAXCONN -P /usr/local/java/memcached-1.5.9/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/java/memcached-1.5.9/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/java/memcached-1.5.9 ] && restart || :
        ;;
        *)
        echo $"Usage: $0 {start|stop|status|restart|reload|condrestart}"
        exit 1
    esac
     
    exit $?

并通过chmod命令赋予权限执行命令：chmod 755 /etc/init.d/memcached

将memcached加入系统服务

执行命令：

\# chkconfig --add memcached

\# chkconfig memcached on

启动memcached服务

执行命令：

\# service memcached start

通过命令  ps -ef|grep memcached  查看memcached服务是否启动成功，如果没有成功，检查脚本里的memcached目录是否正确，或者memcached是否安装完整。

reboot重启linux ，然后再用ps命令查看memcached是否自启动成功

[http_libevent.org_old-releases.html]: http://libevent.org/old-releases.html
[20161101191205358]: /images/20220519/f0361bd422d142c6a5f53b6d3a0f88c4.png
[https_github.com_memcached_memcached_wiki_ReleaseNotes]: https://github.com/memcached/memcached/wiki/ReleaseNotes
[20161101200259656]: /images/20220519/459ffd4be5274c02a7362c2c234b6677.png
[70]: /images/20220519/6367dbfb3d6e4e1a80b9c4b9550892c7.png