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I've been using it for about a year for http://www.wolfire.com http://www.wolfire.com and several hobby projects and am a big fan. If you have any specific que

by jeff18 17y ago

I've been using it for about a year for http://www.wolfire.com http://www.wolfire.com and several hobby projects and am a big fan. If you have any specific questions, I am familiar with most aspects of it. It certainly has a lot of limitations, but if your app happens to coincide with what App Engine currently offers, it is a pretty sweet deal.

micaelwidell 17y ago
About where do you usually hit the limit for free usage? Are we talking hundreds of daily visitors? Thousands? Tens of thousands? I know this varies heavily depending on your code, but does anyone have a good rule of thumb?
- jeff18 17y ago
  We rarely go over the free limit -- I think we've stayed under $10-20 for the entire year, while serving up several million pages. Most of this is due to bandwidth overages from our comic: http://www.wolfire.com/comic http://www.wolfire.com/comic The times we are charged tend to be for burst traffic when something gets picked up on Digg or Reddit. Recently, one of our blog posts was featured on Digg, Reddit, Slashdot, etc. at the same time and Google dutifully served up a couple hundred thousand visits over the course of a few days. They charged us about a nickel! Granted everything is nicely cached so we were not doing much heavy processing. It definitely depends on your web app. If you can cache it, App Engine is essentially free. If you are doing something CPU intensive for every visitor, it's going to be expensive.
  - micaelwidell 17y ago
    Thanks! One more question: Had any problems with using third-party Python libraries? I mean like PIL, cjson or stuff like that? Heard something about C-based libraries not working?
    - skybrian 17y ago
      No, you can't install your own C libraries. There's an imaging library built in: http://code.google.com/appengine/docs/python/images/usingimages.html http://code.google.com/appengine/docs/python/images/usingima...

by jeff18 17y ago

micaelwidell 17y ago

About where do you usually hit the limit for free usage? Are we talking hundreds of daily visitors? Thousands? Tens of thousands? I know this varies heavily depending on your code, but does anyone have a good rule of thumb?

jeff18 17y ago
We rarely go over the free limit -- I think we've stayed under $10-20 for the entire year, while serving up several million pages. Most of this is due to bandwidth overages from our comic: http://www.wolfire.com/comic http://www.wolfire.com/comic The times we are charged tend to be for burst traffic when something gets picked up on Digg or Reddit. Recently, one of our blog posts was featured on Digg, Reddit, Slashdot, etc. at the same time and Google dutifully served up a couple hundred thousand visits over the course of a few days. They charged us about a nickel! Granted everything is nicely cached so we were not doing much heavy processing. It definitely depends on your web app. If you can cache it, App Engine is essentially free. If you are doing something CPU intensive for every visitor, it's going to be expensive.
- micaelwidell 17y ago
  Thanks! One more question: Had any problems with using third-party Python libraries? I mean like PIL, cjson or stuff like that? Heard something about C-based libraries not working?
  - skybrian 17y ago
    No, you can't install your own C libraries. There's an imaging library built in: http://code.google.com/appengine/docs/python/images/usingimages.html http://code.google.com/appengine/docs/python/images/usingima...