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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: brainstorms (Re: dns based loadbalancing/failover)
On Sun, 7 Oct 2001, E.B. Dreger wrote: > Given enough hosting points, overloading becomes rare; I used > Akamai as a real-life example. Given that overloading is rare, > we can focus on failover, and worry less about load-balancing. > Given that we need only to focus on failover, the problem (and > hopefully the solution) becomes much simpler. There are limitations. It moves the choke points around, in particular the choke points between providers (upstream, downstream, and peers). Overloading is a problem, but it is a distributed form of overloading and harder for people outside to detect. Akamai gives excellent protection from overloading as detected by services like Keynote. To really measure how well it worked, you need a measurement infrastructure as distributed as the delivery structure. During the first couple of hours, the systems appeared to need a lot of human intervention. Its unclear to me, as an outsider, what happened during those first few hours. Was it a problem with people not using the tools as well as they could, or if things needed to be re-engineered on the fly.
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