目录
2.4、拷贝目录，使用service keepalived start启动服务
2.5、配置/etc/keepalived/keepalived.conf文件
一、环境要求
1.1、高可用环境
服务器1和服务器2共享一块磁盘，keepalived安装在服务器本地，weblogic安装在共享磁盘上，服务器1和2通过mount和umount共享磁盘实现weblogic的高可用。
1.2、安装环境
keepalived-1.3.6
weblogic 10.3.0.6
linux:rh linux 6.9
二、安装keepalived
2.1、将keepalived安装包上传到服务器并解压
[root@ofapp1 ~]# cd /sxapp/
[root@ofapp1 sxapp]# ls
keepalived-1.3.6.tar.gz
[root@ofapp1 sxapp]# tar -xzvf keepalived-1.3.6.tar.gz
[root@ofapp1 sxapp]# ls
keepalived-1.3.6 keepalived-1.3.6.tar.gz
2.2、安装依赖包
[root@ofapp1 ~]#yum install gcc* -y
[root@ofapp1 ~]# yum install openssl-devel -y
2.3、安装keepalived
[root@ofapp1 ~]# mkdir /usr/local/keepalived/
[root@ofapp1 ~]# cd /sxapp/keepalived-1.3.6
[root@ofapp1 keepalived-1.3.6]# /sxapp/keepalived-1.3.6/configure --prefix=/usr/local/keepalived/
[root@ofapp1 keepalived-1.3.6]# make && make install
2.4、拷贝目录，使用service keepalived start启动服务
[root@rac1 ~]# cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ --如果不在这个目录，使用find命令查找一下
[root@ofapp1 ~]# cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
[root@ofapp1 ~]# mkdir /etc/keepalived/
[root@ofapp1 ~]# cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
[root@ofapp1 ~]#cp /usr/local/keepalived/sbin/keepalived /usr/bin/
执行完这几条命令后，我们就可以使用service keepalived start 来启动keepalived了。
开启服务
[root@ofapp1 ~]#service keepalived start
2.5、配置/etc/keepalived/keepalived.conf文件
[root@ofapp1 keepalived]# pwd
/etc/keepalived
[root@ofapp1 keepalived]# vi keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
vrrp_skip_check_adv_addr
vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_instance VI_1 {
state MASTER #备服务器为backup
interface eth0
virtual_router_id 51
priority 100 #备服务器比100要小
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.1.131.111/24 #VIP地址
}
notify_master /etc/keepalived/scripts/weblogic_master.sh
##变成master状态时要执行的脚本
notify_backup /etc/keepalived/scripts/weblogic_backup.sh
##变成backup状态时要执行的脚本
notify_fault /etc/keepalived/scripts/weblogic_fault.sh
##出现错误时要执行的脚本
notify_stop /etc/keepalived/scripts/weblogic_stop.sh
##keepalived关闭时要执行的脚本
}
2.6、编写keepalived配置文件中的脚本
[root@rac1 ~]# cat /etc/keepalived/scripts/weblogic_master.sh
#!/bin/bash
sleep 10
mount /dev/sdg1 /weblogic
su - weblogic <<EOF
nohup /weblogic/Oracle/Middleware/user_projects/domains/base_domain/startWebLogic.sh \
-Dcom.sun.management.jmxremote \
-Dcom.sun.management.jmxremote.port=9010 \
-Dcom.sun.management.jmxremote.local.only=false \
-Dcom.sun.management.jmxremote.authenticate=false \
-Dcom.sun.management.jmxremote.ssl=false \
& &>/dev/null
exit
EOF
[root@rac1 ~]# cat /etc/keepalived/scripts/weblogic_backup.sh
#!/bin/bash
kill -9 `ps -ef |grep weblogic.Server |grep -v "grep" |awk '{print $2}'`
sleep 3
umount /dev/sdg1
[root@rac1 ~]# cat /etc/keepalived/scripts/weblogic_fault.sh
#!/bin/bash
kill -9 `ps -ef |grep weblogic.Server |grep -v "grep" |awk '{print $2}'`
sleep 3
umount /dev/sdg1
[root@rac1 ~]# cat /etc/keepalived/scripts/weblogic_stop.sh
#!/bin/bash
kill -9 `ps -ef |grep weblogic.Server |grep -v "grep" |awk '{print $2}'`
sleep 3
umount /dev/sdg1
三、安装weblogic
[weblogic@fntax1 ~]$ export DISPLAY=10.16.74.226:0.0
[weblogic@fntax1 ~]$ xhost +
[weblogic@fntax1 ~]$ ll
total 1043476
drwxr-xr-x 2 weblogic sxgp 4096 Sep 14 21:50 bea
drwxr-xr-x 3 weblogic sxgp 4096 Sep 17 12:43 Oracle
-rwxr-xr-x 1 weblogic sxgp 1068506707 Sep 14 19:32 wls1036_generic.jar
[weblogic@fntax1 ~]$ java -jar wls1036_generic.jar
Extracting 0%...............................................................100%
四、配置domain
4.1 进入目录，执行./configer命令
[weblogic@rac1 ~]$ cd /home/weblogic/Oracle/Middleware/wlserver_10.3/common/bin
[weblogic@rac1 bin]$ ./config.sh
4.2选择创建一个weblogic domain
4.3默认下一步
4.4执行domain名字和安装位置
4.5输入weblogic用户名和密码
4.6选择生产模式
4.7选择创建Administration Server
4.8指定名字和地址，此处地址是keepalived 的虚拟出来的地址
4.9点击创建
五、启动server，验证keepalived高可用性
将两台服务器的keepalived启动，在主服务器上将weblogic启动，然后在主服务器上将keepalived关闭，看VIP是否飘到备服务器上，并且查看主备服务器的启动和关闭脚本是否正常执行。
六、参考文献
6.1.轻量级keepalive实现高可用和热备系列一：
http://yhwhzhang.blog.51cto.com/3821405/1201750/
6.2.RHEL6.5+Keepalived 实现双机热备：
http://deararvin.blog.51cto.com/11158301/1739942
