keepalived与lv负载均衡及高可用
一、主服务器配置
1、下载安装keepalived
yum install -y keepalived
2、编写/etc/keepalive/keepalive
global_defs {
router_id LVS_DEVEL 每个keepalived软件id号
}
vrrp_instance VI_1 {
state MASTER #MASTER BACKUP
interface eth0
virtual_router_id 51 #虚拟路由ID，主备一样
priority 101 优先级
advert_int 1 心跳间隔，切换到备服务器
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.2/24 dev eth0 label eth0:0
}
}
virtual_server 10.0.0.2 80 {
delay_loop 6 过duojiu多久检查web服务器是否运行
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50 会话保持时间
protocol TCP
real_server 10.0.0.7 80 {
weight 1
HTTP_GET {
url {
path /
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 10.0.0.8 80 {
weight 1
HTTP_GET {
url {
path /
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_re
}
}
}
二、备服务器配置
1、下载安装keepalived
yum install -y keepalived
2、编写/etc/keepalive/keepalive
global_defs {
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 {
10.0.0.2/24 dev eth0 label eth0:0
}
}
virtual_server 10.0.0.2 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP
real_server 10.0.0.7 80 {
weight 1
HTTP_GET {
url {
path /
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 10.0.0.8 80 {
weight 1
HTTP_GET {
url {
path /
status_code 200
}
connect_timeout 3
nb_get_retry 3
delay_before_re
}
}
}