Dang it-- I keep thinking of addendums... To clarify, when I said that JRUN clusters are non-aware I meant they don't/can't distribute load based on things like CPU utilization, free memory or other application/OS metrics. JRUN clustering IS smart enough however to know if an instance is up or down. Other than that, it is just round robin variants. You have to go to hard ware balancing to get granular control over that other stuff.
~Brad -----Original Message----- From: Brad Wood [mailto:[EMAIL PROTECTED] Sent: Monday, June 11, 2007 5:33 PM To: CF-Talk Subject: RE: Server Cluster I guess that being said, I should add that for true high availability and fail-over you would want to have at least 2 physical servers in some sort of load-balanced config in case of a hardware failure. Note that in a cluster (which can include instances across multiple physical servers) your JRUN connectors provide (non-aware) balancing between a web server (IIS/Apache) and your cluster (application server). If you have multiple web servers you still will need some sort of load-balancing between your users and them. I guess at some point you have to ask yourself if you are just looking for an easy way to distribute your processing or if 99.999% uptime and fail over for every single possible single point of failure is a requirement. ~Brad ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| ColdFusion 8 beta â Build next generation applications today. Free beta download on Labs http://www.adobe.com/cfusion/entitlement/index.cfm?e=labs_adobecf8_beta Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:280712 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
