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Urgent:Weblogic 8.1 session replication issues in clustered environment

kappiil patel

Joined: Aug 06, 2006
Posts: 14
Hi, we are facing a problem with session replication in weblogic 8.1 SP6.

Description of the problem:

We have two servers, and each has two instances of weblogic server. One is primary and the other is secondary instance on both the servers. Here we are using In-Memory replication for session replication method. The problem is session id for the same user is going to be changed even though session is same and active. This happens sporadically. It is not happening for all users all the time. Some time, when user logs in and do some task and accidentally their session id gets changed.

Here is the weblogic.xml content:

Here are the two different example where session ids are different with same session:


any Quick Help to resolve the issue would be highly appreciated...

Thanks ..
Ramesh Mekala
Deepak Bala

Joined: Feb 24, 2006
Posts: 6661

By session ID is replaced, do you mean the person is allocated a session of another user or a new session is allocated ?

Does the user see any visible difference once the swap to another JVM takes place ? How do you even know that the session was replicated to another JVM ?

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It is sorta covered in the JavaRanch Style Guide.
subject: Urgent:Weblogic 8.1 session replication issues in clustered environment
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