Hi Greg, On Sep 5, 9:21 pm, "Gregory D'alesandre" <[email protected]> wrote: > If you serve 1 > request, you'll likely get 1 instance spun up to serve the request, then > after you have served the request the instance will go away after 15 > minutes. This is the behavior you should be seeing today.
Let's say I have an app that gets a traffic spike at the start of the billing day, lasting for 5 minutes, and leading to 4 instances being fired up. There is no other traffic the whole day. Max idle instances is set to 1. Is it possible to predict how many minutes of the quota that consume? Of course I would love the answer to be simply 20 minutes (5x4 minutes), but I'm sure that's wrong. Here are 4 scenarios I could come up with ranging from 80 minutes up to 1,560 minutes: "Die Instance Die!" The scheduler notices the drop to zero traffic and kills off all instances immediately. For each instance 5 minutes + 15 minutes startup fee (see FAQ) = 20 minutes. 80 minutes overall. "15 Minutes Of Paid Idling" The scheduler lets all instances run 15 minutes after the last request and kills them off then. The 15 minutes count as idle time, however. Because max idle instances is set to 1, we get 5 minutes + 15 minutes startup fee + 15 minutes idle time for one instance, and for the other three 5 minutes + 15 minutes startup fee. 95 minutes overall. "60 Minutes Of Paid Idling" Same as before, but the 15 minutes the instances are kept running do not count as idle time (idle time only being time after the 15 minutes without traffic). 35 minutes per instance, 140 minutes overall. "Evil Laugh" Same as before, but the scheduler keeps 1 instance running as long as it wants to. Max Idle instances is 1 (and currently cannot be set to 0), so that would be perfectly "legal". One instance up to 1,440 minutes (one day) + 15 minute startup fee, the other three 35 minutes per instance. Up to 1,560 minutes overall. I included the last scenario to show how unpredictable the new billing feels to me. So, which one is it? Tammo -- 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.
