In a hardware load-balanced environment, I have always used Client vars rather than Session. (Just make sure you store them in the DB, not in the Registry.) Basically, the Client vars are a contract between the browser and the application, whereas Session vars are a contract between the browser and the server. Since the application verifies a user's Client session by reading back to the shared database, it doesn't matter if the user shifts back and forth across servers in the cluster, whether going from www.example.com to example.com or from http: to https:, since the application always retrieves the 'correct' session.
Now, I know that there is a big push in CF8 to stop using Client vars, but I will tell you that it does work quite well in the situation you describe. We ran apps, including many ecommerce apps, in a cluster of 4-5 hardware-balanced servers for years without having "dropped session" issues using Client vars. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;207172674;29440083;f Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:319818 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
