I am losing sleep over this, so any help would be greatly appreciated! APP ID: conit-app01
Since our app released about a week ago, it has been getting an average of about 60 requests/second. On February 27, our app suddenly crashed and was down for several hours, with thousands of these errors appearing in the logs: Request was aborted after waiting too long to attempt to service your request. Most likely, this indicates that you have reached your simultaneous dynamic request limit. This is almost always due to excessively high latency in your app. Please see http://code.google.com/appengine/docs/quotas.html for more details. Since getting this error, I filled out a request to increase this limit at: http://code.google.com/support/bin/request.py?contact_type=AppEngineCPURequest This request was denied, because, "your app has been using, over the past 24 hours, on average 60 QPS with a peak of ~135 QPS; thus you're well under the 500 QPS limit described above." Since this crash, I've also been working to decrease calls to the datastore, and I think our average CPU time has decreased around 30%. In the dashboard, one of our pages still appears "yellow" under the column "Average CPU (API)", with a speed of about 1100. This page is about 6% of the volume of our app. The other pages don't have any warnings. We are well within the limits of our billing. I would feel much better if I could understand the math/metrics that go into producing this error, so it doesn't happen again. How can I know if my page request times are low enough? If I add a new page with a higher CPU time, how can I know if it would make the app crash? Any help or references to details on this error would be appreciated. Thank you in advance. -David -- 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.
