LVS-DR群集模式+keepalived怎么实现高可用

这期内容当中小编将会给大家带来有关LVS-DR群集模式+keepalived怎么实现高可用，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。条件：五台虚拟机：（主）负载调度器：创建映射端口（VIP）优化环境：（/etc/sysctl.conf）net.ipv4.conf.all.send_redirects = 0net.ipv4.conf.default.send_redirects = 0net.ipv4.conf.eth0.send_redirects = 0sysctl -p加载ip_vs模块modp

这期内容当中小编将会给大家带来有关LVS-DR群集模式+keepalived怎么实现高可用，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。条件：五台虚拟机：（主）负载调度器：创建映射端口（VIP）优化环境：（/etc/sysctl.conf）net.ipv4.conf.all.send_redirects = 0net.ipv4.conf.default.send_redirects = 0net.ipv4.conf.eth0.send_redirects = 0sysctl -p加载ip_vs模块modprobe ip_vs查看ipvscat /proc/net/ip_vs安装IPVSyum install -y ipvsadm查看版本：ipvsadm -v设置负载调度器设置模式ipvsadm -A -t 192.168.115.100:80 -s rripvsadm -a -t 192.168.115.100:80 -r 192.168.115.173:80 -g（173和176分别指向两个RS）ipvsadm -a -t 192.168.115.100:80 -r 192.168.115.176:80 -g查看：ipvsadm -Ln安装keepalivedyum install -y gcc* kernel-devel openssl-devel popt-devel ipvsadmtar -xvf keepalived-1.2.7.tar.gz./config开发云主机域名ure –prefix=/ –with-kernel-dir=/usr/src/kernels/2.6.32-131.0.15.el6.i686make && make installchkconfig –add keepalivedchkconfig keepalived on配置keepalived文件：启动服务：service keepalived startchkconfig keepalived on共享资源服务器：搭建NFS给RS挂在使用RS1：安装Apache服务配置本地回环端口映射：设置一条路由：route add -host 192.168.115.100 dev lo:0优化环境：net.ipv4.conf.all.arp_ignore = 1net.ipv4.conf.all.arp_announce = 2net.ipv4.conf.default.arp_ignore = 1net.ipv4.conf.default.arp_announce = 2net.ipv4.conf.lo.arp_ignore = 1net.ipv4.conf.lo.arp_announce = 2RS2：安装Apache服务，将内容从NFS服务器上面挂在过来：mount -t nfs 192.168.115.177:/share /var/www/html设置映射网卡：优化环境：net.ipv4.conf.all.arp_ignore = 1net.ipv4.conf.all.arp_announce = 2net.ipv4.conf.default.arp_announce = 2net.ipv4.conf.default.arp_ignore = 1net.ipv4.c开发云主机域名onf.lo.arp_ignore = 1net.ipv4.conf.lo.arp_announce = 2设置路由：设置一条路由：route add -host 192.168.115.100 dev lo:0测试机访问：每刷新一次，内容一次轮询：下面搭建基于keepalived的LVS-DR增加一个虚拟机作为从负载调度器：加载ip_vs模块modprobe ip_vs查看ipvscat /proc/net/ip_vs安装IPVSyum install -y ipvsadm查看版本：ipvsadm -v设置负载调度器设置模式ipvsadm -A -t 192.168.115.100:80 -s rripvsadm -a -t 192.168.115.100:80 -r 192.168.115.173:80 -g（173和176分别指向两个RS）ipvsadm -a -t 192.168.115.100:80 -r 192.168.115.176:80 -g查看：ipvsadm -Ln优化环境：net.ipv4.conf.all.send_redirects = 0net.ipv4.conf.default.send_redirects = 0net.ipv4.conf.eth0.send_redirects = 0安装keepalivedyum install -y gcc* kernel-devel openssl-devel popt-devel ipvsadmtar -xvf keepalived-1.2.7.tar.gz./configure –prefix=/ –with-kernel-dir=/usr/src/kernels/2.6.32-131.0.15.el6.i686make && make installchkconfig –add keepalivedchkconfig keepalived onservice keepalived startchkconfig keepalived on测试机测试：从服务器成功接替工作：实验成功：配置文件模板：! Configuration File for keepalivedglobal_defs { router_id LVS_R1}vrrp_instance VI_1 { state MASTER interface eth0 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.115.100 }}virtual_server 192.168.115.100 80 { delay_loop 6 lb_algo rr lb_kind DR protocol TCP real_server 192.168.115.173 80 { weight 1 TCP_CHECK { connect_port 80 connect_timeout 3 nb_get_retry 3 delay_before_retry 3 } } real_server 192.168.115.176 80 { weight 1 TCP_CHECK { connect_port 80 connect_timeout 3 nb_get_retry 3 delay_before_retry 3 } } }在做从负载调度器的时候，因为有两个网卡公用一个地址，这样启动网卡的时候会报错解决办法：vim /etc/sysconfig/network-scripts/ifup-eth将图示内容注释即可然后再重启网卡上述就是小编为大家分享的LVS-DR群集模式+keepalived怎么实现高可用了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注开发云行业资讯开发云主机域名频道。

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