To be fair to the App Engine team: I tried concurrency again and the issue http://code.google.com/p/googleappengine/issues/detail?id=4834 seems fixed to me. I was able to reduce my instances from 8 to 1 (sometimes 2) which will certainly reduce my bill *a lot*. I can live with the price of one or two instances.
Only thing I see when I set the "max idle instances" slider to 1 (the lowest possible value), I see one instance serving all requests and one instance remaining idle without any requests. I thought I could put the max idle instances to 0, but that option is not available. When I set the slider to automatic, I have the impression I see less unused (I mean instances with one or two requests) instances popping up. Maybe I should set the delay slider a bit higher than one second for this. Taking into account the administrative overhead of EC2, I will remain on App Engine at the moment, although I hope prices for (small) App Engine instances will drop in the near future. -- 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.