Notes:
1. Node name: hostname, /etc/hosts
2. ssh mutual trust
3. Node time synchronization
Three configuration files of heartbeat:
authkeys: communication key file
ha.cf: Heartbeat service configuration file
haresources: resource management configuration file
Installation configuration (system is CentOS6.5):
< p>WAN IP: 192.168.101.168
node1: 192.168.101.21
node2: 192.168.101.22
1. Configure node1, node2 node name, ssh mutual trust, time synchronization
node1:
# hostname node1.redhat.com
# vim /etc/sysconfig/network
HOSTNAME=node1.redhat.com
#vim /etc/hosts
192.168.101.21 node1.redhat.com node1
192.168.101.22 node2.redhat.com node2
# ssh-keygen -t rsa
#ssh-copy-id -i ~/.ssh/id_rsa.pub node2
# ntpdate 0.centos.pool.ntp.org
node2:
# hostname node2.redhat.com
# vim /etc/sysconfig/network
HOSTNAME=node2.redhat.com
# vim /etc/hosts
192.168.101.21 node1.redhat.com node1
192.168.101.22 node2.redhat.com node2
< p style="white-space:normal;"># ssh-keygen -t rsa
# ssh-copy -id -i ~/.ssh/id_rsa.pub node1
# ntpdate 0.centos.pool.ntp.org
2, node1, node2 install heartbeat< /p>
# Note: CentOS is used here Local iso yum source + EPEL source installation.
# yum install http://mirrors.zju.edu.cn/epel/6/i386/epel-release-6-8.noarch.rpm
#yum install heartbeat cluster-glue resource-agents pacemaker httpd
3, node1 configuration heartbeat
# Copy the configuration file to /etc/ha.d/
#cp -p /usr/share/doc/heartbeat-3.0.4/{ha.cf ,authkeys,haresources} /etc/ha.d/
# Configure to generate a communication key
#openssl rand -base64 20
tRlI5Dr/YHoE59kJ4yYOgNpVmDI=
# vim /etc/ha.d/authkeys< /span>
auth 1
1 md5 tRlI5Dr/YHoE59kJ4yYOgNpVmDI=
#chmod 600 /etc/ha.d/authkeys
< /p>
# Configure the main heartbeat configuration file
# vim /etc/ha .d/ha.cf
logfile/var/log/ha- log heart information # log file path
keepalive 1 # Beat Interval time, set 1 second here
deadtime 30 Deadtime 30 # Node Timeout, if no heartbeat message is received for more than 30s, the node is considered dead
warntime 10 # warning time
The waiting time for the first start of heartbeat, the default is 120 seconds, this time is set to twice the deadtime
udpport 694 # The port used for heartbeat information transmission
mcast eth0 225.1 .1.1 694 1 0 # Use multicast address
auto_failback off # Whether to enable fault recovery
nodenode1.redhat.com # Main Node name, must be consistent with uname -n
node< span class="Apple-tab-span" style="font-family:'Microsoft YaHei','Microsoft YaHei';font-size:14px;white-space:pre;">node2.redhat. com # Standby node name
ping 192.168.101.254 Pass # Pass Ping the gateway to check whether the heartbeat information is normal
# Configure resource management files and bind the external network IP: 192.168.101.168
# vim /etc/ha.d/haresources
< p>node1.redhat.com IPaddr::192.168.101.168/24/eth0/ httpd
4. Copy configuration File to node2
# scp -p /etc/ha .d/{ha.cf,authkeys,haresources} node2:/etc/ha.d/
5. Create a httpd index.html page and close the boot-up httpd
# echo “
node1.redhat.com
“> /var/www/html/index.html
# ssh node2’echo “
node2. redhat.com
” > /var/www/html/index.html’
# chkconfig httpd off
# ssh node2’chkconfig httpd off’
6. Start heartbeat
# Link various heartbeat scripts
# ln -s /usr/share/heartbeat/* /usr/lib64/heartbeat/
# /etc/init.d/heartbeat start
# ssh node2’/etc/init.d/heartbeat start’
7. View logs, bind IP and browser access
# tail /var/log/ha-log
# ifconfig
http://192.168.101.168/
8. Use NFS to share storage
# The NFS host IP is: 192.168.101.28
# NFS shared directory: /data/www/
# vim /data/www/index.html
NFS Server.
# Stop heartbeat
# ssh node2 ‘ /etc/init.d/heart beat stop’
# /etc/init.d/ heartbeat stop
# node1 modify the resource configuration file and copy it to node2
# vim /etc/ha.d/haresources
node1 .redhat.com IPaddr::192.168.101.168/24/eth0/ Filesystem::192.168.101.28:/data/www::/var/www/html::nfs httpd
< span style="font-family:'Microsoft YaHei','Microsoft YaHei';font-size:14px;"># scp /etc/ha.d/haresources node2:/etc/ha.d/
9, start heartbeat< /span>
# /etc/init.d/heartbeat start
# ssh node2’/etc/init.d/ heartbeat start’
10. View logs, bind IP and browser access
# tail /var/log/ha-log
# ifconfig
http://192.168.101.168/
11. Node switching test
# /usr/share /heartbeat/hb_standby