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lvs+keepalived
-------主服务器&从服务器lvs&keepalived------
首先安装依赖包
yum -y install openssl-devel gcc gcc-c++ ipvsadm
yum安装lvs
yum -y install ipvsadm
yum安装keepalived
yum -y installkeepalived
/etc/init.d/ipvsadmrestart
service keepalivedrestart
主服务器配置文件
修改keepalived配置文件（删除原内容，粘贴后修改IP）
vim/etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
linuxedu@foxmail.com
mageedu@126.com
}
notification_email_from kanotify@magedu.com
smtp_connect_timeout 3
smtp_server 172.18.5.43
router_id LVS_DEVEL
}
vrrp_script chk_schedown {
script "[[ -f /etc/keepalived/down ]] && exit 1 || exit0"
interval 2
weight -2
}
vrrp_instance VI_1 {
interface eth0
state MASTER
priority 101 #（大于从服务器）
virtual_router_id 87
garp_master_delay 1
authentication {
auth_type PASS
auth_pass 1221
}
track_interface {
eth0
}
virtual_ipaddress {
10.1.1.182
}
track_script {
chk_schedown
}
}
virtual_server 10.1.1.182 80 { # （VIP）
delay_loop 6
lb_algo rr
lb_kind DR
persistence_timeout 50
protocol TCP
real_server 10.1.1.167 80 { # （web服务IP）
weight 1
HTTP_GET {
url {
path /
status_code 301
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 10.1.1.16880 { # （web服务IP）
weight 1
HTTP_GET {
url {
path /
status_code 301
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
==========================================================================================
附服务器配置文件
修改keepalived配置文件（删除原内容，粘贴后修改IP）
vim /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
linuxedu@foxmail.com
mageedu@126.com
}
notification_email_from kanotify@magedu.com
smtp_connect_timeout 3
smtp_server 172.18.5.43
router_id LVS_DEVEL
}
vrrp_script chk_schedown {
script "[[ -f /etc/keepalived/down ]] && exit 1 || exit0"
interval 2
weight -2
}
vrrp_instance VI_1 {
interface eth0
state BACKUP
priority 100 #（大于从服务器）
virtual_router_id 87
garp_master_delay 1
authentication {
auth_type PASS
auth_pass 1221
}
track_interface {
eth0
}
virtual_ipaddress {
10.1.1.182
}
track_script {
chk_schedown
}
}
virtual_server 10.1.1.182 80 { # （VIP）
delay_loop 6
lb_algo rr
lb_kind DR
persistence_timeout 51
protocol TCP
real_server 10.1.1.168 80 { # （web服务IP）
weight 1
HTTP_GET {
url {
path /
status_code 301
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 10.1.1.167 80 { # （web服务IP）
weight 1
HTTP_GET {
url {
path /
status_code 301
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
===========================================================================================
查询
ipvsadm -Ln
service ipvsadmrestart
service keepalivedrestart
web服务段配置（web1和web2）直接粘贴
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
修改IP后粘贴
/sbin/ifconfig lo:0 192.168.11.31broadcast 192.168.11.31 netmask 255.255.255.255 up
/sbin/route add -host 192.168.11.31dev lo:0
本文出自 “12178027” 博客，请务必保留此出处http://12188027.blog.51cto.com/12178027/1870498
lvs+keepalived