标签：memcached安装
目录
1、安装memcached的准备工作
2、安装、配置 Memcached
3、Memcached常用管理命令
4、Memcached测试
1、安装memcached的准备工作
1.1、系统环境
root@com:~# cat /etc/issue Debian GNU/Linux 8 \n \l root@com:~# uname -r 3.16.0-4-amd64
1.2、更改软件源，安装常用软件包
root@com:~# vim /etc/apt/sources.list #把此文件中原有的内容全部删除，并增加如下内容 deb http://mirrors.163.com/debian/ jessie main deb http://mirrors.163.com/debian/ jessie-updates main deb http://mirrors.163.com/debian/ jessie-backports main deb-src http://mirrors.163.com/debian/ jessie main deb-src http://mirrors.163.com/debian/ jessie-updates main deb-src http://mirrors.163.com/debian/ jessie-backports main deb http://mirrors.163.com/debian-security/ jessie/updates main deb-src http://mirrors.163.com/debian-security/ jessie/updates main
root@com:~# apt-get update #更改软件源后用此命令更新包列表
再安装如下三个软件，这不是必要的步骤，可选。
root@com:~# apt-get install vim root@com:~# apt-get install sudo root@com:~# apt-get install chkconfig
2、安装、配置 Memcached
root@com:~# apt-cache show memcached #查看源中的memcached包的信息 Package: memcached Version: 1.4.21-1.1 #这里是版本号 Installed-Size: 206 Maintainer: David Martínez Moreno <ender@debian.org> Architecture: amd64 Depends: libc6 (>= 2.17), libevent-2.0-5 (>= 2.0.10-stable), libsasl2-2, perl, init-system-helpers (>= 1.18~), lsb-base (>= 3.2-13), adduser Suggests: libcache-memcached-perl, libmemcached, libanyevent-perl, libyaml-perl, libterm-readkey-perl Description-en: high-performance memory object caching system Danga Interactive developed memcached to enhance the speed of LiveJournal.com, a site which was already doing 20 million+ dynamic page views per day for 1 million users with a bunch of webservers and a bunch of database servers. memcached dropped the database load to almost nothing, yielding faster page load times for users, better resource utilization, and faster access to the databases on a memcache miss. . memcached optimizes specific high-load serving applications that are designed to take advantage of its versatile no-locking memory access system. Clients are available in several different programming languages, to suit the needs of the specific application. Traditionally this has been used in mod_perl apps to avoid storing large chunks of data in Apache memory, and to share this burden across several machines. Description-md5: f7b1936bf072e208b59db960aca4de8a Homepage: http://www.memcached.org/ Tag: devel::profiler, implemented-in::c, interface::daemon, network::server, role::program, secteam::squeeze-limited-support, secteam::wheezy-limited-support Section: web Priority: optional Filename: pool/main/m/memcached/memcached_1.4.21-1.1_amd64.deb Size: 97362 MD5sum: db1f2159c2a7086d85b9839577490239 SHA1: a2139100c90351e25f232da7415caa0ff3dae052 SHA256: 8efbb75ed1c65343cc72d0e50058b25a671b386eaafe41e456ca4ad29c4630b8
root@com:~# apt-get install memcached #这里是安装memcached软件 root@com:~# dpkg -L memcached #这里是查看memcached这个包安装后产生的了哪些文件，但没有显示出“/etc/memcached.conf”这个文件，很奇怪 /. /lib /lib/systemd /lib/systemd/system /lib/systemd/system/memcached.service /usr /usr/include /usr/include/memcached /usr/include/memcached/protocol_binary.h /usr/bin /usr/bin/memcached /usr/share /usr/share/man /usr/share/man/man1 /usr/share/man/man1/memcached.1.gz /usr/share/memcached /usr/share/memcached/memcached.conf.default /usr/share/memcached/scripts /usr/share/memcached/scripts/mc_slab_mover /usr/share/memcached/scripts/README.damemtop /usr/share/memcached/scripts/damemtop.yaml /usr/share/memcached/scripts/damemtop /usr/share/memcached/scripts/memcached-tool /usr/share/memcached/scripts/systemd-memcached-wrapper /usr/share/memcached/scripts/start-memcached /usr/share/doc /usr/share/doc/memcached /usr/share/doc/memcached/NEWS.gz /usr/share/doc/memcached/protocol.txt.gz /usr/share/doc/memcached/changelog.Debian.gz /usr/share/doc/memcached/NEWS.Debian.gz /usr/share/doc/memcached/changelog.gz /usr/share/doc/memcached/copyright /usr/share/doc/memcached/README.Debian /usr/share/doc/memcached/README.md /etc /etc/init.d /etc/init.d/memcached /etc/default /etc/default/memcached
root@com:~# vim /etc/memcached.conf 这里只需修改两个参数，一是指定memcached所能使用的内存大小，如下： -m 1024 #默认是64M，请修改成实际所需要的大小 二是修改监听的IP地址，默认时memcached只监听在127.0.0.1这个本地回环地址上，如下修改成本地网卡接口上的实际IP： -l 172.31.11.96
3、Memcached常用管理命令
root@com:~# service memcached start #启动memcached root@com:~# ss -tnl | grep 11211 LISTEN 0 128 172.31.11.96:11211 *:* root@com:~# service memcached status #查看memcached的是否已启动 ● memcached.service - memcached daemon Loaded: loaded (/lib/systemd/system/memcached.service; enabled) Active: active (running) since Thu 2015-08-13 14:06:44 CST; 2min 47s ago Main PID: 17416 (memcached) CGroup: /system.slice/memcached.service └─17416 /usr/bin/memcached -m 1024 -p 11211 -u memcache -l 172.31.11.96 root@com:~# service memcached stop #停止memcached root@com:~# chkconfig --list | grep memcached #查看在哪些启动级别memcached是自启动 memcached 0:off 1:off 2:on 3:on 4:on 5:on 6:off
4、Memcached测试
Xshell:\> telnet 172.31.11.96 11211 #我这里直接用xshell工具进行测试 Connecting to 172.31.11.96:11211... Connection established. To escape to local shell, press ‘Ctrl+Alt+]‘. stats #输入stats命令获取到memcached的状态信息 STAT pid 17416 STAT uptime 1637 STAT time 1439447639 STAT version 1.4.21 STAT libevent 2.0.21-stable STAT pointer_size 64 STAT rusage_user 0.036000 STAT rusage_system 0.052000 STAT curr_connections 5 STAT total_connections 7 STAT connection_structures 6 STAT reserved_fds 20 STAT cmd_get 0 STAT cmd_set 0 STAT cmd_flush 0 STAT cmd_touch 0 STAT get_hits 0 STAT get_misses 0 STAT delete_misses 0 STAT delete_hits 0 STAT incr_misses 0 STAT incr_hits 0 STAT decr_misses 0 STAT decr_hits 0 STAT cas_misses 0 STAT cas_hits 0 STAT cas_badval 0 STAT touch_hits 0 STAT touch_misses 0 STAT auth_cmds 0 STAT auth_errors 0 STAT bytes_read 22 STAT bytes_written 1103 STAT limit_maxbytes 1073741824 #这里是内存大小，单位是字节 STAT accepting_conns 1 STAT listen_disabled_num 0 STAT threads 4 STAT conn_yields 0 STAT hash_power_level 16 STAT hash_bytes 524288 STAT hash_is_expanding 0 STAT malloc_fails 0 STAT bytes 0 STAT curr_items 0 STAT total_items 0 STAT expired_unfetched 0 STAT evicted_unfetched 0 STAT evictions 0 STAT reclaimed 0 STAT crawler_reclaimed 0 STAT lrutail_reflocked 0 END
本文出自 “专注运维，与Linux共舞” 博客，请务必保留此出处http://zhaochj.blog.51cto.com/368705/1687985
标签：memcached安装
原文地址：http://zhaochj.blog.51cto.com/368705/1687985
