Hi, 
I'm looking for a deployment strategy for my production server which enables
me to deploy new code without terminating all the user sessions. I was
thinking about using two tomcat 5 instances and set up in memory session
replication, but I still don't know what to do after I stopped the first
instance and deployed the new code. If I restart the app it would try to get
the session information from the other tomcat instance running the old code,
which would probably result in some exceptions, wouldn't it?! Can I
deactivate (and reactivate) session replication at runtime?

Also is there any way on telling modjk (currently using version 1.2) not to
send requests for new sessions but still forward already existing sessions
(with a valid jvmroute) to the tomcat instance still running the old code
version? This way I could shutdown the second tomcat after all the sessions
are closed by the users (or timed out). 

Cheers
Thomas

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