Each time your instances are started, they accrue instance hours <https://cloud.google.com/appengine/pricing#:~:text=Accrual%20of%20instance%20hours%20begins%20when%20an%20instance%20starts%20and%20ends%20as%20described%20below> up to 15 minutes after the last request or 15 minutes after the instance is shut down. This behavior can explain instance hours accumulating <https://stackoverflow.com/a/16782270/16929894> depending on how the requests are received by App Engine. Which type of scaling is set up for your application? Also which environment are you using (Flex/Standard)? On Friday, May 13, 2022 at 4:23:03 AM UTC-5 zvi...@gmail.com wrote:
> I have a very similar situation: > - Limited to one F1 instance per project > - Looking at App Engine -> Instances -> Billed instances shows under 1 > instance at each moment, except for brief moments with two instances > - Yet Billing consistently charges me for several hours of frontend > instances. > > Tried resolving this via Google's support chat and they were unable to > explain the discrepancy, their only suggestion was to purchase a "technical > support package" which I doubt will help either. > > Also tried deleting old versions (even though they were not running any > instances).. did this a week ago, still getting charged. > > This is quite annoying! Anyone have a suggestion? > > On Monday, December 28, 2020 at 2:00:12 AM UTC+2 Ehsan Kia wrote: > >> Finally managed to make it go back to zero. Not sure which of the things >> I did helped, but I did a bunch of stuff. For one, I did listen to your >> advice and deleted all older versions even though they all had zero >> instances. >> I also optimized my app more and changed max_concurrent_requests >> / target_throughput_utilization, and a bunch more small things. Either one >> of those did it, or Google fixed the issue on their end. Either way thank >> you for the help. >> >> On Friday, December 18, 2020 at 3:42:23 AM UTC-5 vladoi wrote: >> >>> If you believe that you are being overcharged, I will recommend to >>> create a support case with Google Cloud [1] for a deeper investigation. >>> Please include all the details mentioned on this thread in the case and our >>> Google Cloud Billing Team will provide you an answer regarding your >>> concerns. >>> >>> [1]. https://cloud.google.com/support/docs/procedures >>> >>> On Thursday, December 17, 2020 at 9:53:50 AM UTC+1 ph0...@gmail.com >>> wrote: >>> >>>> it still is strange because the only place that does show my instance >>>> usage (the daily dashboard) is always well below 28h. While it does say: >>>> > Due to the way estimates are calculated, the sum of individual >>>> resource costs may not match the displayed total exactly. >>>> still, every day i'm being charged ~$0.50, which means 10 extra hours. >>>> That's almost 50% more than what's displayed. >>>> Also this issue only started very recently, I haven't had any issues >>>> with this for the past 3-4 months. >>>> On Wednesday, December 16, 2020 at 3:07:03 AM UTC-5 vladoi wrote: >>>> >>>>> According to the official documentatio: >>>>> "Setting the maximum to 1 instance **usually** keeps your instance >>>>> hour usage within the free tier." >>>>> However, please consider the important note: >>>>> "*Important:* App Engine applies the max_instances setting on a best >>>>> effort basis. *In some circumstances, App Engine may briefly exceed >>>>> the limit you specify.*" >>>>> >>>>> [1]. https://cloud.google.com/appengine/docs/managing-costs >>>>> >>>>> On Tuesday, December 15, 2020 at 3:35:55 PM UTC+1 ph0...@gmail.com >>>>> wrote: >>>>> >>>>>> None of the older versions are running, and I have an instance limit, >>>>>> but I still went ahead and deleted all the older versions. It's still >>>>>> happening. >>>>>> >>>>>> I'm pretty convinced AppEngine is miscalculating my usage... >>>>>> On Monday, December 14, 2020 at 4:07:10 AM UTC-5 vladoi wrote: >>>>>> >>>>>>> Hello, >>>>>>> >>>>>>> Did you stop serving the previously deployed versions of your GAE >>>>>>> Application ? If you no longer require these versions you can delete >>>>>>> the >>>>>>> version by following our public official documentation [1] [2]: >>>>>>> >>>>>>> >>>>>>> >>>>>>> [1]. >>>>>>> https://cloud.google.com/nodejs/getting-started/delete-tutorial-resources#deleting_app_versions >>>>>>> >>>>>>> [2]. >>>>>>> https://cloud.google.com/sdk/gcloud/reference/app/versions/delete. >>>>>>> >>>>>>> On Friday, December 11, 2020 at 8:57:20 PM UTC+1 ph0...@gmail.com >>>>>>> wrote: >>>>>>> >>>>>>>> I don't think so, since again, the billing section on the AppEngine >>>>>>>> Dashboard <https://console.cloud.google.com/appengine> generally >>>>>>>> takes that into account, in my experience. But yes I've also verified >>>>>>>> that >>>>>>>> it is F1. >>>>>>>> Again last night, when I wrote this email at 3am, the counter was >>>>>>>> at 24.5h right before the reset, but today I see a charge of $0.55. >>>>>>>> >>>>>>>> The annoying part is that there seems to be no way to actually see >>>>>>>> the finalized quota usage to verify these costs. How can I make sure >>>>>>>> what >>>>>>>> Google is charging me is the right amount if I can't even see the >>>>>>>> usage? Is >>>>>>>> there some API that gives access to that which I'm missing? >>>>>>>> >>>>>>>> On Friday, December 11, 2020 at 12:30:12 PM UTC-5 >>>>>>>> jdfi...@cedreo.com wrote: >>>>>>>> >>>>>>>>> Hello, maybe it is due to your instance class. If I remember >>>>>>>>> correctly one hour of an F2 is billed as two hours and F4 is billed >>>>>>>>> as 4 >>>>>>>>> hours. I think the base idea is that one hour represents one hour of >>>>>>>>> F1. >>>>>>>>> There is this part of the doc that helped us understand our cost when >>>>>>>>> we >>>>>>>>> are facing the same question: >>>>>>>>> >>>>>>>>> " *Important:* When you view your bill >>>>>>>>> <https://cloud.google.com/billing/docs/how-to/reports>, you will >>>>>>>>> not see the names of the individual instance classes in your billing >>>>>>>>> line >>>>>>>>> items. Instead, you see instance hours from the "B" classes reported >>>>>>>>> as >>>>>>>>> "Backend Instances", and instance hours from the "F" classes reported >>>>>>>>> as >>>>>>>>> "Frontend Instances". The bill will apply the appropriate multiple of >>>>>>>>> instance hours for each instance class you use. For example, if you >>>>>>>>> use an >>>>>>>>> F4 instance for one hour, you see "Frontend Instance" billing for >>>>>>>>> four >>>>>>>>> instance hours at the F1 rate." >>>>>>>>> >>>>>>>>> It is extracted from https://cloud.google.com/appengine/pricing. >>>>>>>>> On Friday, December 11, 2020 at 9:04:14 AM UTC+1 ph0...@gmail.com >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Every day, I look at the appengine quota page, an hour before >>>>>>>>>> it's about to reset for the day, and it's sitting well below the 28h >>>>>>>>>> free-tier limit, yet the next day, I check billing for the previous >>>>>>>>>> day and >>>>>>>>>> I have ~1$ of charges, which at $0.05/hour, that means 20 hours of >>>>>>>>>> extra >>>>>>>>>> time. So unless my application somehow managed to start 20 instances >>>>>>>>>> in the >>>>>>>>>> last hour (which isn't possible, the limit is 3), those numbers make >>>>>>>>>> no >>>>>>>>>> sense. >>>>>>>>>> >>>>>>>>>> I remember years ago it was possible to see the quota usage for >>>>>>>>>> previous days, but it seems like that page doesn't even exist >>>>>>>>>> anymore, so >>>>>>>>>> there's no way for me to verify how many frontend instance hours >>>>>>>>>> were used >>>>>>>>>> in previous days. But the charges I'm getting definitely do not make >>>>>>>>>> sense. >>>>>>>>>> I never pass 28 hours, yet I'm constantly getting charged every day >>>>>>>>>> for >>>>>>>>>> "frontend instance". >>>>>>>>>> >>>>>>>>>> Is there any way to debug where these costs come from and what my >>>>>>>>>> usage is? I'm not sure if GCP intentionally hides this information >>>>>>>>>> away, >>>>>>>>>> all I can see is the billing cost per day, per SKU, but this still >>>>>>>>>> doesn't >>>>>>>>>> give me my quota usage, and it doesn't explain why I'm being charged >>>>>>>>>> even >>>>>>>>>> after being below free tier usage. >>>>>>>>>> >>>>>>>>> -- 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 google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/2147b0de-d688-4bde-9321-08299a097075n%40googlegroups.com.
