Heartbeat V1 + Ldirctord

Introduction of experimental environment

Hardware: Lenovo T410s

Software: VMWARE Workstation

So:centos 6.6

Ii. purpose of the experiment

High availability of LVS and health monitoring of back-end RS via Ldirectord

Third, network topology

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Iv. preparation of the experimental environment

1. Configure the NTP server to ensure time synchronization

[Email protected] ha.d]# vim/etc/ntp.conf

Add the following

Restrict 192.168.239.0 mask 255.255.255.0 nomodify #允许哪些个网段的主机过来同步

Note the following time server

#server 0.centos.pool.ntp.org Iburst

#server 1.centos.pool.ntp.org Iburst

#server 2.centos.pool.ntp.org Iburst

#server 3.centos.pool.ntp.org Iburst

Server server s1a.time.edu.cn #去该NTP服务器同步时间

[Email protected] ha.d]# ntpdate s1a.time.edu.cn

[[Email protected] ha.d]# service NTPD start

2. The names of nodes communicate with each other

[Email protected] ha.d]# vim/etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

:: 1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.239.133 node1.hailang.com Node1

192.168.239.134 node2.hailang.com Node2

[Email protected] ha.d]# hostname node1.hailang.com

[Email protected] ha.d]# uname-n

3, SSH mutual authentication

[[email protected] ha.d]# ssh-keygen-t RSA

[Email protected] ha.d]# Ssh-copy-id ~/.ssh/id_isa.pub 192.168.239.134

[[email protected] ha.d]# ssh node2.hailang.com

4. Turn off firewall and SELinux

[[Email protected] ha.d]# service iptables stop

[Email protected] ha.d]# Setenforce 0

5. Configure the Yum source

[Email protected] ha.d]# Vim/etc/yum.repos.d/epel.repo

[Epel]

Name=extra Packages for Enterprise Linux 6-$basearch

baseurl=http://mirrors.aliyun.com/epel/6/$basearch

http://mirrors.aliyuncs.com/epel/6/$basearch

#mirrorlist =https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch= $basearch

Failovermethod=priority

Enabled=1

Gpgcheck=0

Gpgkey=file:///etc/pki/rpm-gpg/rpm-gpg-key-epel-6

6, httpd (Node1 provide the content of the page for sorry Node1,node2 to provide the content of the page sorry Node2)

[Email protected] ha.d]# yum-y install httpd

[Email protected] ha.d]# service httpd STATRT

[Email protected] ha.d]# vim/var/www/html/index.html

Node1

V. Installing and configuring Herartbeat v1 and Ldirectord

1. Installation (133 and 134)

[email protected] ~]# Yum install perl-timedate net-snmp-libs libnet PyXML

[Email protected] ~]# RPM-IVH heartbeat-pils-2.1.4-12.el6.x86_64.rpm heartbeat-2.1.4-12.el6.x86_64.rpm heartbeat-stonith-2.1.4-12.el6.x86_64.rpm heartbeat-ldirectord-2.1.4-12.el6.x86_64.rpm

2, configuration (133 and 134)

[Email protected] ~]# Cp/usr/share/doc/heartbeat-2.1.4/{ha.cf,authkeys,haresources}/etc/ha.d/

[Email protected] ~]# cp/usr/share/doc/heartbeat-ldirectord-2.1.4/ldirectord.cf/etc/ha.d/

1) ha.cf

[Email protected] ~]# VIM/ETC/HA.D/HA.CF

Logfile/var/log/ha-log

KeepAlive 2

Deadtime 30

Warntime 10

Initdead 120

Udpport 694

Mcast eth0 225.0.0.1 694 1 0

Auto_failback on

Node node1.hailang.com

Node node2.hailang.com

Ping 192.168.239.1

2) Authkeys

[Email protected] ~]# Vim/etc/ha.d/authkeys

Auth 1

1 CRC

3) VIM/ETC/HA.D/LDIRECTORD.CF

Checktimeout=3

Checkinterval=1

Autoreload=yes

Quiescent=yes

Virtual=192.168.239.200:80

REAL=192.168.239.135:80 Gate

REAL=192.168.239.128:80 Gate

FALLBACK=127.0.0.1:80 Gate

Service=http

Request= "Index.html"

Receive= "OK"

Scheduler=rr

3) haresources

Node1.hailang.com 192.168.239.200/32/eth0/192.168.239.200 LDIRECTORD::/ETC/HA.D/LDIRECTORD.CF

4) Set the kernel parameters on the 128 and 135 servers

[Email protected] ~]# echo 1 >/proc/sys/net/ipv4/conf/lo/arp_ignore

[Email protected] ~]# echo 1 >/proc/sys/net/ipv4/conf/all/arp_ignore

[Email protected] ~]# Echo 2 >/proc/sys/net/ipv4/conf/all/arp_announce

[Email protected] ~]# Echo 2 >/proc/sys/net/ipv4/conf/lo/arp_announce

[Email protected] ~]# ifconfig lo:0 192.168.239.200 netmask 255.255.255.255 Broadcast 192.168.239.200

[Email protected] ~]# route add-host 192.168.239.200 Dev Lo

5) Start the HTTPD service on the 128 and 135 servers and turn off the firewall and provide a test page

[[Email protected] ~]# service httpd start

Starting httpd: [OK]

[[Email protected] ~]# service iptables stop

[Email protected] ~]# vim/var/www/html/index.html

3. Start up (133 and 134)

[[Email protected] ha.d]# service heartbeat start

4. Testing

1) Visit http://192.168.239.200

Result: Switch between 128 and 135

2) Stop HTTP service for 128 server

[[Email protected] ~]# service HTTP Stop

Results: showing 135 pages

3) Stop HTTP service for 128 and 135 servers

Results: Showing 133 of sorry pages

4) Stop the heartbeat of the 133 server

[Email protected] ~]# cd/usr/lib64/heartbeat/

[Email protected] heartbeat]#./hb_standby

Results: Showing 134 of sorry pages

Heartbeat v1 + ldirctord