企业级WEB的负载均衡高可用之LVS+Keepalived(2)

③编辑keepalived.conf文件，直接用keepalived实现负载均衡及高可用性。
a)Keepalved的安装
a)Keepalved的安装
#wget http://www.keepalived.org/software/keepalived-1.1.15.tar.gz
#tar zxvf keepalived-1.1.15.tar.gz

#cd keepalived-1.1.15

#./configure

#make

#make install

将keepalived做成启动脚务，方便管理:

#cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/

#cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/

#mkdir /etc/keepalived

#cp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/

#cp /usr/local/sbin/keepalived /usr/sbin/

#service keepalived start|stop

b)Keealived的配置

①分别在主从负载均衡服务器上配置keepalived.conf ，内容分别如下:

! Configuration File for keepalived

global_defs {

notification_email {

yuhongchun027@163.com

}

notification_email_from sns-lvs@gmail.com

smtp_server 127.0.0.1

router_id LVS_DEVEL

}

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 {

192.168.5.188

}

}

virtual_server 192.168.5.188 80 {

delay_loop 6

lb_algo wrr

lb_kind DR

persistence_timeout 60

protocol TCP

real_server 192.168.5.104 80 {

weight 3

TCP_CHECK {

connect_timeout 10

nb_get_retry 3

delay_before_retry 3

connect_port 80

}

}

real_server 192.168.5.105 80 {

weight 3

TCP_CHECK {

connect_timeout 10

nb_get_retry 3

delay_before_retry 3

connect_port 80

}

}

}

! Configuration File for keepalived

global_defs {

notification_email {

yuhongchun027@163.com

}

notification_email_from sns-lvs@gmail.com

smtp_server 127.0.0.1

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 {

192.168.5.188

}

}

virtual_server 192.168.5.188 80 {

delay_loop 6

lb_algo wrr

lb_kind DR

persistence_timeout 60

protocol TCP

real_server 192.168.5.104 80 {

weight 3

TCP_CHECK {

connect_timeout 10

nb_get_retry 3

delay_before_retry 3

connect_port 80

}

}

real_server 192.168.5.105 80 {

weight 3

TCP_CHECK {

connect_timeout 10

nb_get_retry 3

delay_before_retry 3

connect_port 80

}

}

}