5 Replies Latest reply on Apr 12, 2011 1:09 PM by arkhalil

How I can cluster Jboss servers to Single IP

mohsinkamal84 Apr 12, 2011 5:04 AM

Hello,

Hope every one is fine.I'm new to Jboss App and unable to setup a cluster.

What is scanario:

-------------------------

I have 2 web servers

Web1 192.168.1.20

Web2 192.168.1.21

I have installed apache on it ,enabled mod_jk.

I also have created uriworkermap.properties , mod-jk.conf , workers.properties @ location /etc/httpd/conf

I have configured workers.properties and set Jboss servers IP.

My Jboss server 1 IP is 192.168.1.30 Jboss2 is 192.168.1.31 , I have defined these IPs on workers.properties on both web servers.

I'm running Jboss server with following command:

sh ./run.sh -c all -b 192.168.1.30 -Djboss.messaging.ServerPeerID=1

Jboss2

sh ./run.sh -c all -b 192.168.1.31 -Djboss.messaging.ServerPeerID=2

My Jboss server is running fine.

===> Then I have placed test pages on both servers.

--------------------

[root@webserver2 html]# pwd

/var/www/html

[root@web2 html]# cat index.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>

<head>

<title>Your Page Title</title>

<BODY>

</BODY>

</HTML>

[root@webserver2 html]#

--------------------

On webserver1

[root@web2 html]# pwd

/var/www/html

[root@web2 html]# cat index.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>

<head>

<title>Your Page Title</title>

<BODY>

</BODY>

</HTML>

[root@web2 html]#

--------------------

When I access webserver IPs , my requests are forwading to Jboss servers fine and showing JBoss page.

When I access 192.168.1.20 in browser its showing page through IP http://192.168.1.30:8080 and

192.168.1.21 in browser its showing page through IP http://192.168.1.31:8080

Till now I think every thing is fine.

*********************Imp********************

What I want now is to use another IP and setup it as cluster , let say I want to setup an IP 192.168.1.40 and want to bound other two Ips to this so every time when request come from any web browser it shows results from IP http://192.168.1.40:8080 instead of Jboss servers IP.

Mean either page is serverd by Jboss 1 or @ it shows result through .40.

---------------------------------------------------------------------------

What we need to do , Can some one please provide exact steps.I'm stucked on this and servered alot but couldn't understand that how I can I achive this.

1. How I can cluster Jboss servers to Single IP

mohsinkamal84 Apr 12, 2011 5:34 AM (in response to mohsinkamal84)

B/w I'm using jboss-5.1.0.GA.
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2. How I can cluster Jboss servers to Single IP

mohsinkamal84 Apr 12, 2011 6:12 AM (in response to mohsinkamal84)

They are communicating each other.

--------------
18:07:36,820 INFO [DefaultPartition] I am (192.168.1.30:1099) received membershipChanged event:
18:07:36,820 INFO [DefaultPartition] Dead members: 0 ([])
18:07:36,820 INFO [DefaultPartition] New Members : 1 ([192.168.1.31:1099])
18:07:36,820 INFO [DefaultPartition] All Members : 2 ([192.168.1.30:1099, 192.168.1.31:1099])
18:08:08,022 INFO [GroupMember] org.jboss.messaging.core.impl.postoffice.GroupMember$ControlMembershipListener@1eecfa7 got new view [192.168.1.30:44721|5] [192.168.1.30:44721, 192.168.1.31:51230], old view is [192.168.1.31:36665|4] [192.168.1.30:44721]
18:08:08,023 INFO [GroupMember] I am (192.168.1.30:44721)
18:08:08,023 INFO [GroupMember] New Members : 1 ([192.168.1.31:51230])
18:08:08,023 INFO [GroupMember] All Members : 2 ([192.168.1.30:44721, 192.168.1.31:51230])
--------------

But still my question is their regarding fail over setup and configuring 192.168.1.40.
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3. How I can cluster Jboss servers to Single IP

arkhalil Apr 12, 2011 10:18 AM (in response to mohsinkamal84)

I have summarized the documentation for Clustering HTTP Sessions with Tomcat bellow:

Two distinct functions must be performed:
1. Session state replication (handled by JBoss)
2. Load-balance of incoming invocations (requires additional software or hardware)

Load balancing through mod_jk:
The following is the example configuration:

# Define the first node...
worker.node1.port=8009
worker.node1.host=node1.mycompany.com
worker.node1.type=ajp13
worker.node1.lbfactor=1
worker.node1.local_worker=1
worker.node1.cachesize=10
# ...and the second node.
worker.node2.port=8009
worker.node2.host=node2.mycompany.com
worker.node2.type=ajp13
worker.node2.lbfactor=1
worker.node2.local_worker=1
worker.node2.cachesize=10
# Now we define the load-balancing behaviour
worker.loadbalancer.type=lb
worker.loadbalancer.balanced_workers=node1, node2
worker.loadbalancer.sticky_session=1
worker.loadbalancer.local_worker_only=1
worker.list=loadbalancer
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4. How I can cluster Jboss servers to Single IP

mohsinkamal84 Apr 12, 2011 11:41 AM (in response to arkhalil)

Thank you Abdur Rahman for taking you time.

Here is my configrations:
--------------------------------------------------------
[root@webserver1 conf]# cat workers.properties
# Define list of workers that will be used
# for mapping requests
# The configuration directives are valid
# for the mod_jk version 1.2.18 and later
#
worker.list=loadbalancer,status

# Define Node1
# modify the host as your host IP or DNS name.
worker.node1.port=8009
worker.node1.host=192.168.1.30
worker.node1.type=ajp13
worker.node1.lbfactor=1
# worker.node1.connection_pool_size=10 (1)

# Define Node2
# modify the host as your host IP or DNS name.
worker.node2.port=8009
worker.node2.host= 192.168.1.31
worker.node2.type=ajp13
worker.node2.lbfactor=1
# worker.node1.connection_pool_size=10 (1)

# Load-balancing behaviour
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=node1,node2

# Status worker for managing load balancer
worker.status.type=status
[root@webserver1 conf]#
--------------------------------------------------------

== > What I have to do now is to configure workers.properties as you guided.

2. Load-balance of incoming invocations (requires additional software or hardware)

>> I already have a Load Balancer , I think I have to configure 192.168.1.40 on load balancer interface so requests serverd through this IP.I'm on right track ???

Any other configration which I need on my web server nodes or on Jboss servers ?
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5. How I can cluster Jboss servers to Single IP

arkhalil Apr 12, 2011 1:09 PM (in response to mohsinkamal84)

I this case mod_jk is used for load balancing on the tomcat side. You just need to configure a single web server on load balancer interface.
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