keepalived ,lvs，tomcat 高可用，高并发，高性能 应用架构的搭建

keepalived ,lvs，tomcat 高可用，高并发，高性能 应用架构的搭建

keepalived ,lvs 搭建在同一台服务器上，两个tomcat 分别在一个tomcat上

四台服务器版本 ： centos 6.5

yum install ipvsadm -y

keepalived : etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

notification_email {

root@localhost

}

notification_email_from Alexandre.Cassen@firewall.loc

smtp_server 192.168.184.178

smtp_connect_timeout 30

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 {

192.168.184.222/24 dev eth0 label eth0:A

}

}

virtual_server 192.168.184.222 80 {

delay_loop 6

lb_algo wrr

lb_kind DR

nat_mask 255.255.255.0

persistence_timeout 50

protocol TCP

real_server 192.168.184.188 80 {

weight 1

HTTP_GET {

url {

path /

status_code 200

}

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

real_server 192.168.184.168 80 {

weight 1

HTTP_GET {

url {

path /

status_code 200

}

connect_timeout 3

nb_get_retry 3

delay_before_retry 2

}

}

}

=================

! Configuration File for keepalived

global_defs {

notification_email {

root@localhost

}

notification_email_from Alexandre.Cassen@firewall.loc

smtp_server 192.168.184.178

smtp_connect_timeout 30

router_id LVS_DEVEL

}

vrrp_instance VI_1 {

state BACKUP

interface eth0

virtual_router_id 51

priority 10

advert_int 1

authentication {

auth_type PASS

auth_pass 1111

}

virtual_ipaddress {

192.168.184.222/24 dev eth0 label eth0:A

}

}

virtual_server 192.168.184.222 80 {

delay_loop 6

lb_algo wrr

lb_kind DR

nat_mask 255.255.255.0

persistence_timeout 50

protocol TCP

real_server 192.168.184.188 80 {

weight 1

HTTP_GET {

url {

path /

status_code 200

}

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

real_server 192.168.184.168 80 {

weight 1

HTTP_GET {

url {

path /

status_code 200

}

connect_timeout 3

nb_get_retry 3

delay_before_retry 2

}

}

}

========================

tomcat 服务器上需要配置 在设备上配置lo:A IP地址