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From Tauqir Akhtar <TAkh...@jny.com>
Subject RE: Tomcat with Cisco ACE Load Balancer
Date Wed, 01 Jun 2011 20:08:04 GMT
Thanks Pid for you updates.

All I am trying here to implement Tomcat in Load Balanced Environment.
WE have Java EE base web Application. And we have two 36 GB web servers. Currently they have
WebLogic installed on them. Four Instance of WebLogic managed servers run on each machine.
Our Java Appplicatiion is deployed on all of these web servers.

Machine 1  : WebsLogicServer1 (Port : 6001)
  		WebsLogicServer2 (Port : 6002)
		WebsLogicServer3 (Port : 6003)
		WebsLogicServer4 (Port : 6004)

Machine 1  : WebsLogicServer4 (Port : 6005)
  		WebsLogicServer6 (Port : 6006)
		WebsLogicServer7 (Port : 6007)
		WebsLogicServer8 (Port : 6008)

Right now we are using WebLogic Servers in a Cluster that are loaded balanced by Cisco Load
Balancer.

In current scenario using WebLogic , if a user sends a request , it goes to the Cisco Load
Balancer which directs it to any of the 8 Weblogic Ports in the cluster based on Robin Round
Algorithm.

We don't have any performance issues as of now.

All I am trying here to replicate this setup using Tomcat instead oof weblogic.

Please if you can guide me .

Thanks 
 
Tauqir Akhtar
212 801 8039

-----Original Message-----
From: Pid [mailto:pid@pidster.com] 
Sent: Wednesday, June 01, 2011 7:14 AM
To: Tomcat Users List
Subject: Re: Tomcat with Cisco ACE Load Balancer

On 31/05/2011 21:10, Tauqir Akhtar wrote:
> Hi
> 
> We have been using Weblogic Clusters with Cisco ACE Load Balancer
> We have 8 managed servers in the weblogic Cluster distributed evenly over two Machines.
> Load Balancer distributes the load in Robin Round fashion across these 8 managed servers
using the concept of Stickiness.
> 
> Now we need to replace Weblogic with Tomcat.
> I am looking for a document that would help me replicate this existing architecture in
Tomcat environments.
> 
> Questions that I have:
> 
> 
>  *   How many tomcat Installation would be required?

Impossible to say, we don't know anything about your application, server
spec, environment, current performance, etc etc etc

>  *   Or it would be single Installation on each machines and then copying of directory
for each port?

Impossible to say, we don't know anything about your application, server
spec, environment, current performance, etc etc etc

Also: I don't know what 'copying of directory for each port' means.

>  *   Will load Balancer see any difference if the request is from a Tomcat or Weblogic?

The app server make requests to the load balancer?  Or the load balancer
directs requests to each app server?

>  *   If yes, then what are changes required in Load Balancer configuration?

Impossible to say, we don't know anything about your application, server
spec, environment, current performance, etc etc etc

> Pease help me with your suggestions.

Please provide some meaningful information.


p


> Thanks
> 
> Tauqir Akhtar
> 
> 
> 
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