第一节：memcached服务器端安装 · memcached指南

案例1：在centos6系统上操作 [root@varinish01 ~]# yum -y install memcached 查询memcached安装了哪些 ~~~ [root@varinish01 ~]# rpm -ql memcached /etc/rc.d/init.d/memcached /etc/sysconfig/memcached /usr/bin/memcached /usr/bin/memcached-tool /usr/share/doc/memcached-1.4.4 /usr/share/doc/memcached-1.4.4/AUTHORS /usr/share/doc/memcached-1.4.4/CONTRIBUTORS /usr/share/doc/memcached-1.4.4/COPYING /usr/share/doc/memcached-1.4.4/ChangeLog /usr/share/doc/memcached-1.4.4/NEWS /usr/share/doc/memcached-1.4.4/README /usr/share/doc/memcached-1.4.4/protocol.txt /usr/share/doc/memcached-1.4.4/readme.txt /usr/share/doc/memcached-1.4.4/threads.txt /usr/share/man/man1/memcached.1.gz /var/run/memcached ~~~ 案例2：在centos7系统上操作 [root@node7 ~]# yum -y install memcached 查询memcached安装了哪些 ~~~ [root@node7 ~]# rpm -ql memcached /etc/sysconfig/memcached /usr/bin/memcached /usr/bin/memcached-tool /usr/lib/systemd/system/memcached.service /usr/share/doc/memcached-1.4.15 /usr/share/doc/memcached-1.4.15/AUTHORS /usr/share/doc/memcached-1.4.15/CONTRIBUTORS 案例1：在centos6系统上操作 [root@varinish01 ~]# yum -y install memcached 查询memcached安装了哪些 [root@varinish01 ~]# rpm -ql memcached /etc/rc.d/init.d/memcached /etc/sysconfig/memcached /usr/bin/memcached /usr/bin/memcached-tool /usr/share/doc/memcached-1.4.4 /usr/share/doc/memcached-1.4.4/AUTHORS /usr/share/doc/memcached-1.4.4/CONTRIBUTORS /usr/share/doc/memcached-1.4.4/COPYING /usr/share/doc/memcached-1.4.4/ChangeLog /usr/share/doc/memcached-1.4.4/NEWS /usr/share/doc/memcached-1.4.4/README /usr/share/doc/memcached-1.4.4/protocol.txt /usr/share/doc/memcached-1.4.4/readme.txt /usr/share/doc/memcached-1.4.4/threads.txt /usr/share/man/man1/memcached.1.gz /var/run/memcached 案例2：在centos7系统上操作 [root@node7 ~]# yum -y install memcached 查询memcached安装了哪些 [root@node7 ~]# rpm -ql memcached /etc/sysconfig/memcached /usr/bin/memcached /usr/bin/memcached-tool /usr/lib/systemd/system/memcached.service /usr/share/doc/memcached-1.4.15 /usr/share/doc/memcached-1.4.15/AUTHORS /usr/share/doc/memcached-1.4.15/CONTRIBUTORS /usr/share/doc/memcached-1.4.15/COPYING /usr/share/doc/memcached-1.4.15/ChangeLog /usr/share/doc/memcached-1.4.15/NEWS /usr/share/doc/memcached-1.4.15/README.md /usr/share/doc/memcached-1.4.15/protocol.txt /usr/share/doc/memcached-1.4.15/readme.txt /usr/share/doc/memcached-1.4.15/threads.txt /usr/share/man/man1/memcached-tool.1.gz /usr/share/man/man1/memcached.1.gz 启动服务 [root@node7 ~]# systemctl start memcached [root@node7 ~]# ss -tunlp|grep 11211 udp UNCONN 0 0 *:11211 *:* users:(("memcached",pid=27619,fd=28)) udp UNCONN 0 0 :::11211 :::* users:(("memcached",pid=27619,fd=29)) tcp LISTEN 0 128 *:11211 *:* users:(("memcached",pid=27619,fd=26)) tcp LISTEN 0 128 :::11211 :::* users:(("memcached",pid=2761 案例3：在centos7上编译安装memcached-v1.5.5 #!/bin/bash #description: install memcached on centos7 #date 2018/02/21 # MEMCACHED_VERSION=1.5.5 SOFTDIR=/usr/local/src #install libevent cd /usr/local/src [ ! -f libevent-2.1.8-stable.tar.gz ] && wget http://soft.51yuki.cn/libevent-2.1.8-stable.tar.gz [ ! -d libevent-2.1.8-stable ] && tar xf libevent-2.1.8-stable.tar.gz && cd libevent-2.1.8-stable && ./configure --prefix=/usr/libevent && make && make install /usr/sbin/ldconfig #install memcached cd /usr/local/src && [ ! -f memcached-${MEMCACHED_VERSION}.tar.gz ] && wget http://www.memcached.org/files/memcached-${MEMCACHED_VERSION}.tar.gz [ ! -d memcached-${MEMCACHED_VERSION} ] && tar xf memcached-${MEMCACHED_VERSION}.tar.gz && cd memcached-${MEMCACHED_VERSION} && ./configure -with-libevent=/usr/libevent/ -prefix=/usr/local/memcached && make && make install #configure memcached cat > /etc/sysconfig/memcached <<EOF PORT="11211" USER="memcached" MAXCONN="1024" CACHESIZE="256" OPTIONS="" EOF #add memcached user if ! id memcached &>/dev/null ;then groupadd -g 1120 memcached useradd -u 1120 -g memcached -s /sbin/nologin memcached fi #add memcached start scripts cd /usr/lib/systemd/system USER="memcached" PORT="11211" CACHESIZE="256" MAXCONN="1024" OPTIONS="" IPADDR="192.168.20.133" cat > memcached.service <<EOF [Unit] Description=Memcached Before=httpd.service After=network.target [Service] Type=simple EnvironmentFile=-/etc/sysconfig/memcached ExecStart=/usr/local/memcached/bin/memcached -u $USER -p $PORT -m $CACHESIZE -c $MAXCONN -l $IPADDR $OPTIONS [Install] WantedBy=multi-user.target EOF #start memcached systemctl restart memcached.service if [ "`ps -ef|grep memcached|wc -l`" -gt 1 ] ;then echo "memcached start successful" else echo "memcached start fail" fi 案例4：在centos7上，通过saltstack来批量安装memcached服务第一步：安装libevent [admin@master prod]$ sudo mkdir libevent/files -p [admin@master prod]$ cd libevent/files/ [admin@master files]$ sudo wget http://soft.51yuki.cn/libevent-2.1.8-stable.tar.gz [admin@master libevent]$ sudo vim install.sls include: - pkg.pkg-init libevent-install: file.managed: - name: /usr/local/src/libevent-2.1.8-stable.tar.gz - source: salt://libevent/files/libevent-2.1.8-stable.tar.gz - user: root - group: root - mode: 644 cmd.run: - name: cd /usr/local/src && sudo tar zxf libevent-2.1.8-stable.tar.gz && cd libevent-2.1.8-stable && sudo ./configure --prefix=/usr/local/libevent && make && make install - unless: test -d /usr/local/libevent - require: - file: libevent-install 测试看看： [admin@master prod]$ sudo salt 'proxy01*' state.sls libevent.install env=prod test=true 第二步：安装memcached [admin@master prod]$ pwd /srv/salt/prod [admin@master prod]$ sudo mkdir memcached/files -p [admin@master files]$ sudo wget http://www.memcached.org/files/memcached-1.5.5.tar.gz [admin@master files]$cd .. [admin@master memcached]$ vim install.sls include: - libevent.install memcached-install: file.managed: - name: /usr/local/src/memcached-1.5.5.tar.gz - source: salt://memcached/files/memcached-1.5.5.tar.gz - user: root - group: root - mode: 644 cmd.run: - name: cd /usr/local/src && sudo tar zxf memcached-1.5.5.tar.gz && cd memcached-1.5.5 && sudo ./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent && make && make install - unless: test -d /usr/local/memcached - require: - cmd: libevent-install - file: memcached-install 测试看看： [admin@master prod]$ sudo salt 'proxy01*' state.sls memcached.install env=prod test=true Succeeded: 15 (unchanged=2, changed=1) Failed: 0 ------------- Total states run: 15 [admin@master files]$ ll （如果需要memcached和memcached.service,可以找一台虚拟机手动安装一遍，然后拷贝过来，适当修改一下） total 448 -rw-r--r--. 1 root root 71 Feb 22 17:25 memcached -rw-r--r--. 1 root root 449297 Feb 13 13:13 memcached-1.5.5.tar.gz -rw-r--r--. 1 root root 257 Feb 22 17:26 memcached.service [admin@master files]$ pwd /srv/salt/prod/memcached/files [admin@master memcached]$ cat service.sls include: - memcached.install memcached-user-group: group.present: - name: memcached - gid: 1120 user.present: - name: memcached - fullname: memcached - shell: /sbin/nologin - uid: 1120 - gid: 1120 /etc/sysconfig/memcached: file.managed: - source: salt://memcached/files/memcached - user: root - group: root - mode: 644 memcached-service: file.managed: - name: /usr/lib/systemd/system/memcached.service - source: salt://memcached/files/memcached.service - user: root - group: root - mode: 644 service.running: - name: memcached - enable: True - require: - file: memcached-service - user: memcached-user-group - watch: - file: /etc/sysconfig/memcached 测试看看： [admin@master prod]$ sudo salt 'proxy01*' state.sls memcached.service env=prod test=true Summary ------------- Succeeded: 20 (unchanged=7, changed=3) Failed: 0 ------------- Total states run: 20 如何没有问题，可以编写top.sls文件咯，我这里就直接安装 [admin@master prod]$ sudo salt 'proxy01*' state.sls memcached.service env=prod Summary ------------- Succeeded: 20 (changed=3) Failed: 0 ------------- Total states run: 20 查看客户端端口是否启动 [admin@master prod]$ sudo salt 'proxy01*' cmd.run "ss -tunlp|grep 11211" proxy01.51yuki.cn: udp UNCONN 0 0 *:11211 *:* users:(("memcached",pid=3525,fd=31),("memcached",pid=3525,fd=30),("memcached",pid=3525,fd=29),("memcached",pid=3525,fd=28)) udp UNCONN 0 0 :::11211 :::* users:(("memcached",pid=3525,fd=35),("memcached",pid=3525,fd=34),("memcached",pid=3525,fd=33),("memcached",pid=3525,fd=32)) tcp LISTEN 0 128 *:11211 *:* users:(("memcached",pid=3525,fd=26)) tcp LISTEN 0 128 :::11211 :::* users:(("memcached",pid=3525,fd=27)) 参数详解 ~~~ -d选项是启动一个守护进程， -m是分配给Memcache使用的内存数量，单位是MB，我这里是100MB， -u是运行Memcache的用户，我这里是root， -l是监听的服务器IP地址，如果有多个地址的话，我这里指定了服务器的IP地址192.168.20.136， -p是设置Memcache监听的端口，我这里设置了11211，最好是1024以上的端口，我们这里统一使用11211 -c选项是最大运行的并发连接数，默认是1024，我这里设置了256，按照你服务器的负载量来设定。 -P是设置保存Memcache的pid文件，我这里是保存在/tmp/memcached.pid， ~~~ Memcached 管理监控工具 http://www.junopen.com/memadmin/memadmin-1.0.12.tar.gz （需要安装php-memcache扩展）测试： http://10.2.13.219/memadmin/index.php?action=admin 默认用户名：admin 密码：admin