1.实验规划:
mytest1:192.169.201.7
mytest2:192.169.201.8
vip:192.169.201.100
NFS服务器mytest3:192.168.201.9
2.设置各节点的hostname.
将如下信息写入各节点的/etc/hosts文件:
mytest1 192.169.201.7
mytest2 192.169.201.8
将各节点的主机名写入/etc/sysconfig/network文件中.
3.设置各节点的信息关系:
在mytest1上执行:
ssh-keygen -t dsa -P ‘‘ -f ~/.ssh/id_dsa
ssh-copy-id -i ~/.ssh/id_dsa.pub [email protected]
在mytest2上执行:
ssh-keygen -t dsa -P ‘‘ -f ~/.ssh/id_dsa
ssh-copy-id -i ~/.ssh/id_dsa.pub [email protected]
4.设置时间同步:
ntpdate 192.168.201.7
5.安装软件包:
heartbeat - Heartbeat subsystem for High-Availability Linux
heartbeat-gui - Provides a gui interface to manage heartbeat clusters
heartbeat-ldirectord - Monitor daemon for maintaining high availability resources
heartbeat-pils - Provides a general plugin and interface loading library
heartbeat-stonith - Provides an interface to Shoot The Other Node In The Head
perl-MailTools - Various mail-related perl modules
libnet - C library for portable packet creation and injection
yum --nogpgcheck install heartbeat-2.1.4-11.el5.x86_64.rpm \
heartbeat-gui-2.1.4-11.el5.x86_64.rpm \
heartbeat-ldirectord-2.1.4-11.el5.x86_64.rpm \
heartbeat-pils-2.1.4-11.el5.x86_64.rpm \
heartbeat-stonith-2.1.4-11.el5.x86_64.rpm \
libnet-1.1.6-7.el5.x86_64.rpm
6.修改配置文件:
6.0样例配置文件:
[[email protected] ha.d]# ls -l /usr/share/doc/heartbeat-2.1.4/
总计 460
-rw-r--r-- 1 root root 1873 2010-03-21 apphbd.cf
-rw-r--r-- 1 root root 645 2010-03-21 authkeys
-rw-r--r-- 1 root root 3470 2010-03-21 AUTHORS
-rw-r--r-- 1 root root 157643 2010-03-21 ChangeLog
-rw-r--r-- 1 root root 17989 2010-03-21 COPYING
-rw-r--r-- 1 root root 26532 2010-03-21 COPYING.LGPL
-rw-r--r-- 1 root root 12951 2010-03-21 DirectoryMap.txt
-rw-r--r-- 1 root root 24835 2010-03-21 faqntips.html
-rw-r--r-- 1 root root 87 2010-03-21 faqntips.txt
-rw-r--r-- 1 root root 32462 2010-03-21 GettingStarted.html
-rw-r--r-- 1 root root 99 2010-03-21 GettingStarted.txt
-rw-r--r-- 1 root root 10539 2010-03-21 ha.cf
-rw-r--r-- 1 root root 15809 2010-03-21 HardwareGuide.html
-rw-r--r-- 1 root root 97 2010-03-21 HardwareGuide.txt
-rw-r--r-- 1 root root 5905 2010-03-21 haresources
-rw-r--r-- 1 root root 19046 2010-03-21 hb_report.html
-rw-r--r-- 1 root root 89 2010-03-21 hb_report.txt
-rw-r--r-- 1 root root 34067 2010-03-21 heartbeat_api.html
-rw-r--r-- 1 root root 97 2010-03-21 heartbeat_api.txt
-rw-r--r-- 1 root root 871 2010-03-21 logd.cf
-rw-r--r-- 1 root root 1270 2010-03-21 README
-rw-r--r-- 1 root root 4654 2010-03-21 Requirements.html
-rw-r--r-- 1 root root 95 2010-03-21 Requirements.txt
-rw-r--r-- 1 root root 24104 2010-03-21 rsync.html
-rw-r--r-- 1 root root 81 2010-03-21 rsync.txt
-rw-r--r-- 1 root root 784 2010-03-21 startstop
cd /usr/share/doc/heartbeat-2.1.4/;
cp -p authkeys ha.cf haresource /etc/ha.d/
6.1密钥文件:
产生随机数:
[[email protected] ha.d]# dd if=/dev/random count=1 bs=512|md5sum
0+1 records in
0+1 records out
128 bytes (128 B) copied, 0.000448 seconds, 286 kB/s
ae0090b45f102e58084b6e3ce6f2d4c4 -
将两个节点的authkes文件修改为如下内容:
auth 1
1 md5 ae0090b45f102e58084b6e3ce6f2d4c4
6.2修改两节点的heartbeat服务的配置文件ha.cf,增加如下内容:
bcast eth0
node mytest1
node mytest2
ping 192.168.201.2
6.3资源管理配置文件haresources
heartbeat默认通过/usr/lib64/heartbeat/findif将vip设置到与网卡上地址在同一网段的网卡上,如果需要明确指明,需要修改haresources配置文件.
查找服务脚本的默认路径是:
/etc/ha.d/resource.d
/etc/init.d/
在两节点的haresources中增加如下内容:
mytest1 IPaddr::192.168.201.100/24/eth0 httpd
7.安装httpd服务:
yum install httpd
在两个节点上执行如下命令:
echo "<h1>this is the `hostname` server</h1>" >/var/www/html/index.html
8.启动heartbeat服务:
service heartbeat start
ssh mytest2 "service heartbeat start"
9.在浏览器访问vip地址测试.
显示访问的是mytest1的web服务.
10.主备切换.
/usr/lib64/heartbeat/hb_standby
11.在浏览器访问vip地址测试.
显示访问的是mytest2的web服务.
12.配置NFS服务器:
mkdr /myweb
echo "/myweb 192.168.201.0/24(ro)" >>/etc/exports
service nfs start
[[email protected] ~]# showmount -e
Export list for mytest3:
/myweb 192.168.201.0/24
echo "<h1>NFS server</h1>" > /myweb/index.html
13.在两个节点上手工挂载文件系统:
mount 192.168.201.9:/myweb /mnt
umount /mnt
14.在两节点编辑haresources配置文件:
修改如下内容:
mytest1 IPaddr::192.168.201.100/24/eth0 httpd
修改后为如下内容:
mytest1 IPaddr::192.168.201.100/24/eth0 Filesystem::192.168.201.9:/myweb::/var/www/html::nfs httpd
15.启动服务,并验证:
service heartbeat start
ssh mytest2 "service heartbeat start"
16.至此heartbeat实验测试完毕.