Actually, you're right, backends are exempt from the 10 second deadline for URL fetch operations, for user-facing requests. But if you allow your backend to process a user-facing request, you may have to make it a public backend (if the user-facing request is a public request), and since you have no control over when a user facing request arrives, your backends may likely stay active permanently, causing you additional charges. Note that a backend is more expensive than a front-end, at least until front-ends are 50% discounted for python apps, or if it is higher than a B1 class. If you're expecting to stay under the 9 hour free backend instance hour limit, then you should absolutely avoid user-facing requests from triggerring backends.
2011/9/15 Andrei Cosmin Fifiiţă <[email protected]> > Thank you for your response. > That is the same solution i found, for both cases. I thought that backends > could have helped me. > On Sep 15, 2011 5:39 PM, "Rishi Arora" <[email protected]> wrote: > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
