Clustering over two separate machines(CPU)

Hi all Oracle Experts out there,
I'm currently working on my a project which requires me to Cluster two weblogic servers on two separate CPU.
When a client accesses an application on one weblogic server and it goes down, the session will be passed to the other weblogic server which will back it up.
Does anyone know how should i go about doing it?
I've been playing around with Oracle Fusion Middleware 11.1.1.1.0 to try to cluster but have been unsuccessful.
Thanks
Gavin
Edited by: user12326632 on Dec 8, 2009 6:55 PM

Hello,
I am trying to do the same thing; that is: setting up a cluster with two machines running each one an instance of WL 10.3.
I wrote a simple Shopping Cart application using servlet and EJB.
I have created a new domain with one cluster, two managed server, one administration server and two machines.
I have then packed the domain and unpacked it in the other machine,
I have configured the replication groups in the first server like this:
primary replication group: myReplicationGroup1
secondary replication group: myReplicationGroup2
And in the second server instead:
primary replication group: myReplicationGroup2
secondary replication group: myReplicationGroup1
I use Apache web server and I have configured it to use the mod_wl_22.so plugin.
I have started the administration server and the two managed servers and deployed my shopping cart application in all the servers in the cluster.
Everything seems to work fine but... when I close (ctrl+C) the managed server running my current shopping cart instance, Apache send the following requests to the remaining server and I get:
"Error 500--Internal Server Error
javax.ejb.EJBException: Could not establish a connection with 3535692784398933269S:192.168.1.10:[7001,7001,-1,-1,-1,-1,-1]:clusteredDomain:server1, java.rmi.ConnectException: Destination unreachable; nested exception is:
(the 192.168.1.10 ip address is the one of the closed server)
So I think that the Http session state is not replicated... and I don't know why...
Am I missing something? Am I doing something wrong?
EDIT: If I deploy only the Web part of my application (the shopping cart servlet) (modified to works without the ejb) it works correctly,
the session replication works pretty good. But when I include my servlet in an ear file with the ejb... It doesn't work...
I have specified the persistent-store-type as replicated in the weblogic.xml descriptor in the servlet war file...
Do I have to set that attribute also in the weblogic-application.xml in the ear archive?
Thanks again
Edited by: user10874329 on 10-dic-2009 7.47

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