The documentation <https://cloud.google.com/appengine/quotas#Instances> shows that when instances are increased, instance time is accrued for 15 minutes after the last request to the instance. This could explain a possible accruing of cost that adds up per month. You could try setting an upper limit <https://cloud.google.com/appengine/docs/managing-costs#specify_the_maximum_number_of_instances>of 1 instance, so that if an additional instance is created automatically by App Engine, it does not use up instance time <https://cloud.google.com/appengine/quotas#Instances>. Do you see other costs that might be also adding up from related services? You can filter the billing report table <https://cloud.google.com/billing/docs/how-to/cost-table#read-the-table> for your project to see detailed costs of your usage for App Engine.
On Tuesday, April 26, 2022 at 6:55:28 AM UTC-5 [email protected] wrote: > Hello. > > I have a single service running on App Engine. It's a very-low-traffic > website, so I've set it to always have 1 instance running, to avoid lengthy > cold starts when someone does visit. It's been running with no problems for > a couple of years or so. It always stayed within the free tier. I haven't > made changes to it in at least several months. > > However, since around mid-March, I've been getting charged for extra > instance hours. I've checked the console and everything seems normal. The > instances chart shows a straight line on 1, with occasional spikes to 2 > which last for maybe five minutes every couple of hours or so, which is > normal due to restarts and such, and certainly doesn't seem enough to go > over the 28 free hours per day. Right now, for example, it says that I've > used 19 hours today, and that the quota will reset in 5 hours, so 24 hours > total. > > And yet, I keep getting charged. Not a lot, it adds up to maybe 3 or 4 > dollars a month, but still, I don't know where it's coming from. > > Did App Engine change something about how hours are billed around > mid-March? Any ideas on how to check what's going on? > > Thanks! > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/df1d17f0-211f-443b-a803-cf8a53d78289n%40googlegroups.com.
