memcached高可用群集部署

环境部署

第一步:配置memcached主缓存服务器

#挂载软件包mount.cifs //192.168.142.1/memcached /mntcd /mnt/memcached#创建目录mkdir /opt/magent       #解压安装包tar zxvf magent-0.5.tar.gz -C /opt/magent/tar zxvf libevent-2.1.8-stable.tar.gz -C /opttar zxvf memcached-1.5.6.tar.gz -C /opt#安装必要组件yum install gcc gcc-c++ make -y#进行编译安装cd /opt/libevent-2.1.8-stable/./configure --prefix=/usrmake && make installcd /opt/memcached-1.5.6/./configure --with-libevent=/usrmake && make installcd /opt/magent/vim ketama.h#ifndef SSIZE_MAX#define SSIZE_MAX 32767#endif#第一行末尾添加-lmvim MakefileLIBS = -levent-lm#编译make#安装opensshyum install openssh-clients -ycp magent /usr/bin#推送magent文件scp magent root@192.168.142.131:/usr/bin#关闭防火墙和安全功能systemctl stop firewalld.service setenforce 0#安装keepalivedyum install keepalived -y#修改配置文件vim /etc/keepalived/keepalived.conf ! Configuration File for keepalived#写入下列内容,定义函数vrrp_script magent {        script "/opt/shell/magent.sh"        interval 2}#修改route-idglobal_defs {   notification_email {     acassen@firewall.loc     failover@firewall.loc     sysadmin@firewall.loc   }   notification_email_from Alexandre.Cassen@firewall.loc   smtp_server 192.168.200.1   smtp_connect_timeout 30   router_id MAGENT_HAL   #修改id名}#修改网卡端口vrrp_instance VI_1 {    state MASTER    interface ens33         #修改网卡信息    virtual_router_id 51    priority 100    advert_int 1    authentication {        auth_type PASS        auth_pass 1111    }    #修改，调用上边函数    track_script {        magent   }    virtual_ipaddress {        192.168.142.100     #定义虚拟IP地址    }}mkdir /opt/shellcd /opt/shell/#配置从服务器脚本vim magent.sh#!/bin/bashK=`ps -ef | grep keepalived | grep -v grep | wc -l`if [ $K -gt 0 ];then        magent -u root -n 51200 -l 192.168.142.100 -p 12000 -s 192.168.45.132:11211 -b 192.168.142.131:11211elsepkill -9 magentfichmod +x magent.sh#启动systemctl start keepalived.service#查看迁移地址ip addr#启动主服务器memcached -m 512k -u root -d -l 192.168.142.130 -p 11211#查看端口是否正常开启netstat -anptu | grep 11211

第二步:配置memcached从缓存服务器

#挂载软件包mount.cifs //192.168.142.1/memcached /mnt#解压安装包cd /mnt/memcachedtar zxvf libevent-2.1.8-stable.tar.gz -C /opttar zxvf memcached-1.5.6.tar.gz -C /optyum install gcc gcc-c++ make -ycd /opt/libevent-2.1.8-stable/./configure --prefix=/usrmake && make installcd /opt/memcached-1.5.6/./configure --with-libevent=/usrmake && make install[root@localhost memcached-1.5.6]# cd /etc/keepalived/[root@localhost keepalived]# mv keepalived.conf keepalived.conf.bk[root@localhost keepalived]# touch keepalived.conf[root@localhost keepalived]# vim keepalived.confvrrp_script magent {        script "/opt/shell/magent.sh"        interval 2}global_defs {   notification_email {     acassen@firewall.loc     failover@firewall.loc     sysadmin@firewall.loc   }   notification_email_from Alexandre.Cassen@firewall.loc   smtp_server 192.168.200.1   smtp_connect_timeout 30   router_id MAGENT_HB      #id名不可与主服务器相同}vrrp_instance VI_1 {    state BACKUP            #设定从服务器    interface ens33    virtual_router_id 52    #id号不可与主服务器相同    priority 90             #优先级低与主服务器     advert_int 1    authentication {        auth_type PASS        auth_pass 1111    }    track_script {        magent   }    virtual_ipaddress {        192.168.142.100     #定义虚拟IP地址    }}mkdir /opt/shellcd /opt/shell/#配置从服务器脚本vim magent.sh#!/bin/bashK=`ip addr | grep 192.168.142.100 | grep -v grep | wc -l`if [ $K -gt 0 ];then        magent -u root -n 51200 -l 192.168.142.100 -p 12000 -s 192.168.142.130:11211 -b 192.168.142.131:11211elsepkill -9 magentfichmod +x magent.sh#启动keepalivedsystemctl start keepalived.service#关闭防火墙和安全功能systemctl stop firewalld.service setenforce 0#启动从服务器memcached -m 512k -u root -d -l 192.168.142.131 -p 11211#查看端口是否正常开启netstat -anptu | grep 11211#安装telent进行测试yum install telnet -y

第三步:客户端测试

#关闭防火墙和安全功能systemctl stop firewalld.service setenforce 0#安装telent进行测试yum install telnet -y#使用漂移地址登录连接telnet 192.168.142.100 12000#创建键值对,验证主从同步add username 0 0 71234567#双机热备#停掉主服务器systemctl stop keepalived.service#使用漂移地址登录连接telnet 192.168.142.100 12000

谢谢阅读!!!