Session Tracking in clustered environment

[rajesh godbole]

Can someone through light on:

1. How session tracking is managed in clustered environment?

2. How singleton objects are managed in clustered environment?

Please suggest good site to read more details on the clustering environment.

[Pradeep bhatt]

I suggest you to read Clustering document of weblogic server.
http://edocs.bea.com

[Ronald Heukers]

Rajesh,

On many loadbalancers you can put the option of session binding on for different ports. That means that a session will always go to the same server where he started. We have enabled this option for our applications and it saves us a lot of troubles with sessions.

regards,

Ronald

[rajesh godbole]

Thanks Pradip.

I have downloaded the pdf file and will read it carefully. Looks fundamental,detailed and useful document.

Quick question: Is it weblogic specific information or is generic info? we might use websphere during the project.

[Pradeep bhatt]

Originally posted by rajesh godbole:
Thanks Pradip.

I have downloaded the pdf file and will read it carefully. Looks fundamental,detailed and useful document.

Quick question: Is it weblogic specific information or is generic info? we might use websphere during the project.

The doc is specific to weblogic.No harm in reading it.

[Pradeep bhatt]

Originally posted by Ronald Heukers:
Rajesh,

On many loadbalancers you can put the option of session binding on for different ports. That means that a session will always go to the same server where he started. We have enabled this option for our applications and it saves us a lot of troubles with sessions.

regards,

Ronald

This is called as "sticky load balancing".

[Pradeep bhatt]

To implement a singleton in clustered environment bind the object to JNDI tree of one of the server. This has a single point of failure. Any other ideas? :roll: