RHEL6.2平台利用KVM虚拟机搭建高可用负载均衡WEB集(3)

make -C genhash install

[root@keepalived-master keepalived-1.2.12]#make install。make[1]: entering directory/root/downloads/emacs-24.5/lib-src&rsquo。make[1]: entering directory `/root/downloads/emacs-24.2/lib-src'。

install -d /usr/local/keepalived/bin

protected]/* */ sbin]# ln -s /usr/local/keepalived/sbin/keepalived /usr/bin/。 path="/usr/lib/jvm/jdk8/bin:/usr/local/sbin:/usr/local/bin: /usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"。protected]/* */ install]#cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/。

install -d /usr/local/keepalived/share/man/man1

install -m 644 ../doc/man/man1/genhash.1 /usr/local/keepalived/share/man/man1

[root@keepalived-master keepalived-1.2.12]#make install。make[1] : leaving directory /root/downloads/fcgi- 2. 4. 1- snap- 0910052249’。make[1]: leaving directory/root/downloads/emacs-24.5/lib-src&rsquo。

############################################

安装文件路径

2、LVS-MASTER及LVS-BACKUP主机配置keepalived

(1)、LVS-MASTER

root@LVS-MASTER:[/root]~$mkdir /etc/keepalived

root@LVS-MASTER:[/root]~$ln -s /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/

root@LVS-MASTER:[/root]~$ln -s /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/

ln -s /usr/local/nginx/conf/nginx.conf /etc/ln -s /usr/local/nginx/sbin/nginx /usr/sbinvi /etc/nginx.conf。protected]/* */ sbin]# ln -s /usr/local/keepalived/sbin/keepalived /usr/bin/。. /usr/local/keepalived/etc/sysconfig/keepalived。

[root@rac1 ~]# /bin/ln -s /usr/bin/scp /usr/local/bin/scp。# ln -s /usr/local/pureftpd/bin/pure-pw /usr/local/bin/。protected]/* */ sbin]# ln -s /usr/local/keepalived/sbin/keepalived /usr/bin/。

root@LVS-MASTER:[/root]~$ln -s /usr/local/keepalived/sbin/* /sbin/

root@LVS-BACKUP:[/root]~$modprobe ip_vs

root@LVS-MASTER:[/root]~$vi /etc/rc.local

############################################

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

modprobe ip_vs

############################################

LVS-MASTER主机keepalived.conf文件设置：

1、vi /etc/keepalived/keepalived.conf。vi /etc/keepalived/keepalived.conf。protected]/* */ sbin]# vi /etc/keepalived/keepalived.conf 。

############################################

! Configuration File for keepalived

global_defs {

notification_email {

root@localhost

}

notification_email_from root@localhost

smtp_server 127.0.0.1

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 {

172.16.9.254

}

}

virtual_server 172.16.9.254 80 {

delay_loop 6

lb_algo rr

lb_kind DR

# nat_mask 255.255.255.0

persistence_timeout 50

protocol TCP

real_server 172.16.9.31 80 {

weight 1

TCP_CHECK {

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

real_server 172.16.9.32 80 {

weight 1

TCP_CHECK {

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

real_server 172.16.9.33 80 {

weight 1

TCP_CHECK {

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

}

############################################

启动keepalived

root@LVS-MASTER:[/root]~$service keepalived restart

停止 keepalived：[失败]

正在启动 keepalived：[确定]

root@LVS-MASTER:[/root]~$chkconfig --level 2345 keepalived on

(2)、LVS-BACKUP

LVS-BACKUP主机keepalived.conf文件设置：

root@LVS-BACKUP:[/root]~$vi /etc/keepalived/keepalived.conf

############################################

[root@master ~]# cat /etc/keepalived/keepalived.conf 。cp etc/keepalived/keepalived.conf /etc/keepalived/。cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/。

! Configuration File for keepalived

global_defs {

notification_email {

root@localhost

}

notification_email_from root@localhost

smtp_server 127.0.0.1

smtp_connect_timeout 30

router_id LVS_DEVEL

}

vrrp_instance VI_1 {

state BACKUP

interface eth0

virtual_router_id 51

priority 50

advert_int 1

authentication {

auth_type PASS

auth_pass 1111

}

virtual_ipaddress {

172.16.9.254

}

}

virtual_server 172.16.9.254 80 {

delay_loop 6

lb_algo rr

lb_kind DR

# nat_mask 255.255.255.0

persistence_timeout 50

protocol TCP

real_server 172.16.9.31 80 {

weight 1

TCP_CHECK {

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

real_server 172.16.9.32 80 {

weight 1

TCP_CHECK {

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

real_server 172.16.9.33 80 {

weight 1

TCP_CHECK {

connect_timeout 3

nb_get_retry 3

delay_before_retry 3

}

}

}

############################################

启动keepalived

root@LVS-BACKUP:[/root]~$service keepalived restart

停止 keepalived：[失败]

正在启动 keepalived：[确定]

: : chkconfig crond --level 2345 on。: chkconfig crond --level 2345 on。chkconfig crond --level 2345 on。

3、REAL_SERVER（WEB-A、WEB-B、WEB-C）做如下设置：

分别在 REAL_SERVER（WEB-A、WEB-B、WEB-C）上执行以下命令:

[root@Test-Web-B ~]# yum groupremove "MySQL Database client" "MySQL Database server" ##原来安装了mysql，卸载掉

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