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Session Tracking in clustered environment

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