Configure High Availability Heartbeat in RHEL5

Required RPMs.

heartbeat-2.99.0-3.1.i386.rpm
heartbeat-common-2.99.0-3.1.i386.rpm
heartbeat-common-devel-2.99.0-3.1.i386.rpm
heartbeat-debuginfo-2.99.0-3.1.i386.rpm
heartbeat-devel-2.99.0-3.1.i386.rpm
heartbeat-ldirectord-2.99.0-3.1.i386.rpm
heartbeat-pils-2.1.4-9.el5.i386.rpm
heartbeat-resources-2.99.0-3.1.i386.rpm

Dependencies.

ipvsadm-1.24-8.1.i386.rpm
ipvsadm-debuginfo-1.24-8.1.i386.rpm
libltdl3-1.4.3-9sls.i586.rpm
libnet-1.1.2.1-1.1.i386.rpm
libnet-1.1.2.1-2.rf.i386.rpm
libnet-debuginfo-1.1.2.1-1.1.i386.rpm
libnet-debuginfo-1.1.2.1-2.rf.i386.rpm
lynx-2.8.5-11.i386.rpm
lynx-debuginfo-2.8.5-11.i386.rpm
openais-0.80.3-6.1.i386.rpm
openais-debuginfo-0.80.3-6.1.i386.rpm
openais-devel-0.80.3-6.1.i386.rpm
perl-libwww-perl-5.805-1.1.1.noarch.rpm
perl-MailTools-1.76-1.noarch.rpm
perl-Net-SSLeay-1.32-1.el5.rf.i386.rpm
perl-TimeDate-1.16-3.2.1.noarch.rpm

Pre-Configuration Requirements

1. Assign hostname node01 to primary node with IP address 172.16.4.80 to eth0.
   
2. Assign hostname node02 to slave node with IP address 172.16.4.81.
   
   

Configuration files

1. authkeys
   
2. ha.cf
   
3. haresources

vim /etc/ha.d/authkeys

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

#Add Following

auth 2 

2 sha1 test-ha 

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

chmod 600 /etc/ha.d/authkeys 

vim /etc/ha.d/ha.cf

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

#Add following lines

logfile /var/log/ha-log  

logfacility local0 

keepalive 2  

deadtime 30 

initdead 120 

bcast eth0 

udpport 694 

auto_failback on

node node01

node node02 

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

vim /etc/ha.d/haresources

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

#Add following line node01 172.16.4.82 httpd

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

Copy the /etc/ha.d/ directory from node01 to node02:
scp -r /etc/ha.d/ root@node02:/etc/

vim /etc/httpd/conf/httpd.conf
#Add following line

Listen 172.16.4.82:80 

Copy the /etc/httpd/conf/httpd.conf file to node02:  

scp /etc/httpd/conf/httpd.conf root@node02:/etc/httpd/conf/

Create the file index.html on both nodes (node01 & node02):

Now start heartbeat on the primary node01 and slave node02  

/etc/init.d/heartbeat start