lvs keepalived mysqlcluster负载均衡DR

[root@localhost ~]# lsmod|grep ip_vs

ip_vs_rr               12600  1

ip_vs                 140944  3 ip_vs_rr

nf_conntrack          105745  1 ip_vs

libcrc32c              12644  2 xfs,ip_vs

wget http://www.keepalived.org/software/keepalived-1.2.24.tar.gz

tar zxvf keepalived-1.2.24.tar.gz

cd keepalived-1.2.24

./configure --prefix=/usr/local/keepalived

make

make install

mkdir /etc/keepalived

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

[root@localhost ~]# /usr/local/keepalived/sbin/keepalived

! Configuration File for keepalived

global_defs {

   router_id LVS_DEVEL

}

vrrp_instance VI_1 {

    state MASTER

    interface ens192

    virtual_router_id 51

    priority 100

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {

        192.168.1.244/24

    }

}

virtual_server 192.168.1.244 3306 {

        delay_loop 6

        lb_algo rr

        lb_kind DR

        persistence_timeout 6

        protocol TCP

        real_server 192.168.1.242 3306 {

                weight 100

                TCP_CHECK {

                        connect_timeout 3

                        nb_get_retry 3

                        delay_before_retry 3

                        connect_port 3306

                }

        }

        real_server 192.168.1.243 3306 {

                weight 100

                TCP_CHECK {

                        connect_timeout 3

                        nb_get_retry 3

                        delay_before_retry 3

                        connect_port 3306

                }

        }

}

查看lvs状态

在realserver上设置ip绑定vip开机启动

[root@localhost ~]# vi lvs.sh

#!/bin/bash

#chkconfig: 2345 79 20

#description:realserver

SNS_VIP=192.168.1.244

. /etc/rc.d/init.d/functions

case "$1" in

start)

ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP

/sbin/route add -host $SNS_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 "RealServer Start OK"

;;

stop)

ifconfig lo:0 down

route del $SNS_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 "RealServer Stoped"

;;

*)

echo "Usage: $0 {start|stop}"

exit 1

esac

exit 0