Heartbeat installation configuration and httpd high availability simple example

Precautions:

1. Node Name: hostname,/etc/hosts

2. SSH Trust

3, Node time synchronization

Three configuration files for heartbeat:

Authkeys: Communication key File

Ha.cf:heartbeat Service configuration file

Haresources: Resource Management configuration file

Installation configuration (System is CentOS6.5):

WAN ip:192.168.101.168

node1:192.168.101.21

node2:192.168.101.22

1, configuration Node1, node2 node name, SSH 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

# ssh-keygen-t RSA

# ssh-copy-id-i ~/.ssh/id_rsa.pub Node1

# ntpdate 0.centos.pool.ntp.org

2, Node1, Node2 installation Heartbeat

Note: This is installed using the CentOS local ISO yum source +epel source.

# 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 config file to/etc/ha.d/

# cp-p/usr/share/doc/heartbeat-3.0.4/{ha.cf,authkeys,haresources}/etc/ha.d/

# Configure generate Communication key

# OpenSSL Rand-base64 20

Trli5dr/yhoe59kj4yyognpvmdi=

# Vim/etc/ha.d/authkeys

Auth 1

1 MD5 trli5dr/yhoe59kj4yyognpvmdi=

# chmod 600/etc/ha.d/authkeys

# Configure the heartbeat master configuration file

# VIM/ETC/HA.D/HA.CF

LogFile/var/log/ha-log # log file path

KeepAlive 1 # Heartbeat Message delivery interval, set here for 1 seconds

Deadtime 30 # Node Timeout time, more than 30s no heartbeat information is considered node dead

Warntime 10 # Alarm Time

Initdead # Heartbeat First start wait time, default 120 seconds, this time set to deadtime twice times

Udpport 694 # The port used by heartbeat messaging

Mcast eth0 225.1.1.1 694 1 0 # with multicast address

Auto_failback off # Whether to turn on recovery

Nodenode1.redhat.com # Master node name, must be consistent with Uname-n

Nodenode2.redhat.com # Alternate nodes name

Ping 192.168.101.254 # to detect if the heartbeat information is normal by pinging the gateway

# Configure resource management files, bind extranet ip:192.168.101.168

# vim/etc/ha.d/haresources

Node1.redhat.com ipaddr::192.168.101.168/24/eth0/httpd

4. Copy the configuration file to Node2

# scp-p/etc/ha.d/{ha.cf,authkeys,haresources} node2:/etc/ha.d/

5. Create httpd index.html page and turn off boot httpd

# echo "

# ssh Node2 ' echo '

# chkconfig httpd off

# ssh Node2 ' chkconfig httpd off '

6. Start Heartbeat

# links Heartbeat Various 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. Using NFS shared storage

# 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/heartbeat stop '

#/etc/init.d/heartbeat Stop

# Node1 Modify the resource profile 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

# scp/etc/ha.d/haresources Node2:/etc/ha.d/

9. Start Heartbeat

#/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

Heartbeat installation configuration and httpd high availability simple example