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Once you get the applications installed on each cluster member, you can test httpsession replication by hitting the application with your favorite browser. Probably something like: http://localhost:8080/servlets-examples-cluster/servlet/SessionExample . Note that the output page contains the ID of the server that is servicing the request. In your browser window, fill in the appropriate input fields and hit the submit button. depending on the tomcat vesion, the The console dialogue (the prompt where you started geronimo) might should show that that the httpsession data is being transmitted and received between the cluster members. Note that the transmit/receive confirmation messages in the log are only present for Tomcat 5.5.12.

Load Balancing and failover
Now you are ready to setup the Load Balancer. We recommend using Apache HTTP server and mod_jk for this example.

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