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Session Mgmt in clustered servers

Jeff Mychasiw
Greenhorn

Joined: Dec 13, 2001
Posts: 5
Are there any restrictions (other than the size) on the type of a objects that should be put into a session that would be replicated in another server? I was told to avoid putting any java Collections(such as Hashtable) into the session because in a clustered environment, any changes to a collection may not be reflected in the other replicated sessions?
This info was with respect to Weblogic.
Am I off Base?
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Session Mgmt in clustered servers