On May 11, 3:09 pm, Adam Sah <adam....@gmail.com> wrote: > - "appengine scales" -- is it really that hard to scale clusters of VPSs?
YES IT IS, as one who's had to scale a LAMP app when it got popular. For a start, you suddenly need a minimum of four linode nodes: one load balancer, one database, and two web servers. And you've got to manage all those nodes, patching and upgrading them. Assuming you want disaster recovery too, you need to set up the same infrastructure (another 4 nodes) in a geographically distinct place, and figure out how to keep data synced between them. Finally, if you hit the big time and start needing more than one database server, you're in for a world of hurt - replicating databases is a black art. Solving this problem is why Oracle can charge hundreds of thousands for their systems. OTOH, I agree with the thrust of your argument - the free ride is over with Appengine. Basically it'll become too expensive for advertising- supported apps, leaving only those with corporate IT budgets or subscription models. Kind of ironic given how Google makes all their money... -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
