标签:linux
keepalived: LB:lvs,nginx HA:keepalived,heartbeat,corosync,cman HP:高性能集群 分布式存储:HDFS 分布式计算:YARN, batch:MapReduce in-memory:spark stream:storm keepalived: active/passive ntp:network time protocol date修改时间方法: date:月日时分年.秒 date 102411262017.50 vrrp:virtual route redundent protocol 虚拟路由冗余协议 keepalived: vrrp协议在linux主机上以守护进程的方式实现; 能够根据配置文件自动生成ipvs规则; 对各RS做健康状态检测; 组件:vrrp stack checkers ipvs warpper -->ipvs 配置文件的组成部分; global configuration vrrpd configuration vrrp instance vrrp synchonizationg group lvs configuration 1.本机的主机名,各节点可以解析主机名 2.ntp时间同步 3.iptables关闭或者配置相应规则 双主配置。两组实例 主1 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 LVS_DEVEL } vrrp_instance VI_1 { state MASTER interface eth1 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.6.88 } } vrrp_instance VI_2 { state BACKUP interface eth1 virtual_router_id 61 priority 99 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.6.99 } } 主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 LVS_DEVEL } vrrp_instance VI_1 { state backup interface eth0 virtual_router_id 51 priority 99 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.6.88 } } vrrp_instance VI_2 { state backup interface eth0 virtual_router_id 61 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.6.99 } } keepalived+LVS负载均衡配置 主配置: ! Configuration File for keepalived global_defs { notification_email { acassen@firewall.loc failover@firewall.loc sysadmin@firewall.loc } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS_DEVEL } vrrp_instance VI_1 { state MASTER interface eth1 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.6.88 } } virtual_server 172.16.6.88 80 { delay_loop 6 #健康检查时间间隔 lb_algo wrr #负载均衡调度算法 lb_kind DR #负载均衡转发规则 #persistence_timeout 20 #设置会话保持时间 protocol TCP #协议 real_server 172.16.6.12 80 { weight 1 #设置权重 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } real_server 172.16.6.13 80 { weight 2 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } } 备配置: ! Configuration File for keepalived global_defs { notification_email { acassen@firewall.loc failover@firewall.loc sysadmin@firewall.loc } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS_DEVEL } vrrp_instance VI_1 { state BACKUP interface eth0 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.6.88 } } virtual_server 172.16.6.88 80 { delay_loop 6 #健康检查时间间隔 lb_algo wrr #负载均衡调度算法 lb_kind DR #负载均衡转发规则 #persistence_timeout 20 #设置会话保持时间 protocol TCP #协议 real_server 172.16.6.12 80 { weight 1 #设置权重 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } real_server 172.16.6.13 80 { weight 2 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } } vim rs.sh #!/bin/bash # description: Config realserver lo and apply noarp VIP=172.16.6.88 case "$1" in start) ifconfig lo:0 $VIP netmask 255.255.255.255 broadcast $VIP /sbin/route add -host $VIP dev lo:0 echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce sysctl -p >/dev/null 2>&1 echo "RealServer Start OK" ;; stop) ifconfig lo:0 down route del $VIP >/dev/null 2>&1 echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce echo "RealServer Stoped" ;; *) echo "Usage: $0 {start|stop}" exit 1 esac exit 0 chmod +x rs.sh ./rs.sh start 启动服务 rs服务:service httpd start keepalived服务器: service keepalived restart; ssh 172.16.6.15 ‘service keepalived restart‘
标签:linux
原文地址:http://perper.blog.51cto.com/6284626/1976203