Httpd + heartbeat + nfs in Centos6.0 for httpd hot backup and unified resource management

System centos6.0

Objective: The httpd service of two machines provides the same service and uses heartbeat to implement hot backup of httpd. to manage resources in a unified manner, the configuration must be written to both services, provides the nfs service for convenient management.

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G33223-0.jpg "title =" Photo 1.jpg "/>

Lv1: 192.168.182.130

Lv2: 192.168.182.129

Vip: 192.168.182.200

Nfsserver: 192.168.182.131

1. First on lv1 and lv2:

Configure hosts

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G34N3-1.jpg "title =" 2.jpg"/>

When the httpdservice is started, the index.html of the two machines is differentiated, for example, lv1 and lv2 are displayed respectively.

2. Install heartbeat;

Yum install heartbeat libnet

1> cp/usr/share/doc/heartbeat-3.0.4/authkeys ha. cf haresources/etc/ha. d/

Configure ha. cf

Logfile/var/log/ha-log

Logfacility local0

Keepalive 2

Deadtime 10

Warntime 5

Initdead 120

Udpport 694

Bcast eth0

Auto_failback on

Node lv1
Node lv2

Ping 192.168.182.2 # Gateway

Ping_group group1 192.168.182.130 192.168.182.129

Respawn hacluster/usr/lib/heartbeat/ipfail

Configure authkeys

Auth 1
1 crc
#2 sha1 HI!
#3 md5 Hello!

Configure haresources

Lv1 IPaddr: 192.168.182.200/32/eth0: 0 httpd

2> scp to lv2.

Chmod 600 authkeys
Scp ha. cf haresources authkeys root @ lv2:/etc/ha. d/

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G36132-2.jpg "title =" 2.jpg"/>

3> Start httpd for verification;

Lv1:/etc/init. d/httpd start

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G343E-3.jpg "title =" 2.jpg"/>

Lv2:/etc/init. d/httpd start

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G34044-4.jpg "title =" 2.jpg"/>

Start heartbeat

Lv1:/etc/init. d/heartbeat start

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G31S9-5.jpg "title =" 2.jpg"/>

Lv2: Same as above

Then you will find the eth0: 0 Nic of lv1

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G3I16-6.jpg "title =" 2.jpg"/>

Httpd and heartbeat service status

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G32X9-7.jpg "title =" 2.jpg"/>

Access 192.168.182.200

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G32238-8.jpg "title =" 2.jpg"/>

It turns out that lv1 is a service provider.

We stopped the heartbeat service on lv1.

You will find that the eth0: 0 Nic on lv1 is gone, and it is drifting to lv2.

When you access 192.168.182.200

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G3BY-9.jpg "title =" 2.jpg"/>

Prove that lv2 is currently providing services

3. Enable nfs on the third machine nfsserver

1> yum install nfs rpcbind

/Etc/init. d/nfs start

Mkdir/root/data

Vim/etc/exports

/Root/data * (rw)

Exportfs-r

2. test whether the mount is normal on any machine.

Lv1 test:

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G354K-10.jpg "title =" 2.jpg"/>

The test is normal.

Umount out umount/mnt

Modify haresources on lv1 and lv2 respectively.

Lv1 IPaddr: 192.168.182.200/32/eth0: 0 Filesystem: 192.168.182.131:/root/data:/var/www/html: nfs httpd

Start httpd and heartbeat on lv1 and lv2 respectively.

Found in mount on lv1

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G36222-11.jpg "title =" 2.jpg"/>

2> Create a test file under/root/data on nfsserver

Vim index.html

Test

Open the browser http: // 192.168.182.200

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G35F3-12.jpg "title =" 2.jpg"/>

Test normal

4. test whether the link between nfs and the lv server is normal.

Stop heartbeat/etc/init. d/heartbeat stop on lv1.

Found under mount on lv2

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G33302-13.jpg "title =" 2.jpg"/>

The link is normal.

Lv2 ifconfig eth0: 0

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G31056-14.jpg "title =" 2.jpg"/>

Nfsserver

Vim index.html

Test \ test

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/013G34V2-15.jpg "title =" 2.jpg"/>

Test found OK !!!

So far, everything is OK

Only index.html on nfsservercan be modified to facilitate management;

This article is from the Coffee _ Blue Mountains blog, please be sure to keep this source http://lansgg.blog.51cto.com/5675165/1203542