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相关架构设置：
1)vip : 192.168.137.6
2)DS master ip : 192.168.137.8
3)DS backup ip : 192.168.137.9
4)RS 1 ip: 192.168.137.100
5)RS 2 ip: 192.168.137.200
两台RS上的配置脚本：lvsrs
[root@localhost init.d]# cat /etc/init.d/lvsrs #!/bin/sh vip=192.168.137.6 . /etc/rc.d/init.d/functions case "$1" in start) ifconfig lo:0 $vip netmask 255.255.255.255 broadcast $vip 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 "Real server 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 "Real server stoped" ;; *) echo "Usage: $0 {start|stop}" exit 1 esac
DS master上的keepalived的配置文件：
[root@localhost ~]# cat /etc/keepalived/keepalived.conf
global_defs {
#notification_email {
# acassen@firewall.loc
# failover@firewall.loc
# sysadmin@firewall.loc
#}
#notification_email_from Alexandre.Cassen@firewall.loc
#smtp_server 192.168.137.1
#smtp_connect_timeout 30
router_id LVS_DS_IP
}
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 {
192.168.137.6
}
}
virtual_server 192.168.137.6 80 {
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 0
protocol TCP
real_server 192.168.137.100 80 {
weight 3
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 192.168.137.200 80 {
weight 3
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
DS backup上的keepalived的配置文件：
[root@localhost ~]# cat /etc/keepalived/keepalived.conf
global_defs {
#notification_email {
# acassen@firewall.loc
# failover@firewall.loc
# sysadmin@firewall.loc
#}
#notification_email_from Alexandre.Cassen@firewall.loc
#smtp_server 192.168.137.1
#smtp_connect_timeout 30
router_id LVS_DS_IP
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 51
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.137.6
}
}
virtual_server 192.168.137.6 80 {
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 0
protocol TCP
real_server 192.168.137.100 80 {
weight 3
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 192.168.137.200 80 {
weight 3
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
启动命令：
service keepalived start | stop
service lvsrs start | stop
查看DS上的keepalived是否配置成功：
tail -f /var/log/message
[root@localhost ~]# tail -f /var/log/messages Feb 2 16:22:04 localhost Keepalived_healthcheckers[2498]: Activating healthchecker for service [192.168.137.100]:80 Feb 2 16:22:04 localhost Keepalived_healthcheckers[2498]: Activating healthchecker for service [192.168.137.200]:80 Feb 2 16:22:04 localhost Keepalived_vrrp[2499]: VRRP_Instance(VI_1) Transition to MASTER STATE Feb 2 16:22:04 localhost Keepalived_vrrp[2499]: VRRP_Instance(VI_1) Received lower prio advert, forcing new election Feb 2 16:22:05 localhost Keepalived_healthcheckers[2498]: TCP connection to [192.168.137.200]:80 failed !!! Feb 2 16:22:05 localhost Keepalived_healthcheckers[2498]: Removing service [192.168.137.200]:80 from VS [192.168.137.6]:80 Feb 2 16:22:05 localhost Keepalived_vrrp[2499]: VRRP_Instance(VI_1) Entering MASTER STATE Feb 2 16:22:05 localhost Keepalived_vrrp[2499]: VRRP_Instance(VI_1) setting protocol VIPs. Feb 2 16:22:05 localhost Keepalived_vrrp[2499]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 192.168.137.6 Feb 2 16:22:05 localhost Keepalived_healthcheckers[2498]: Netlink reflector reports IP 192.168.137.6 added Feb 2 16:22:10 localhost Keepalived_vrrp[2499]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 192.168.137.6
查看分发配置：
[root@localhost ~]# ipvsadm IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 192.168.137.6:http wrr -> 192.168.137.100:http Route 3 0 0 -> 192.168.137.200:http Route 3 3 0 [root@localhost ~]#
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原文地址：http://www.cnblogs.com/digdeep/p/4268063.html
