Thanks James, that's really useful information. Did you post how many QPS your application does?
-- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Fri, Sep 24, 2010 at 2:48 PM, James Saull <[email protected]> wrote: > Even on Python pages using Django templates (such my "About" page that > did not access anything (e.g. memcache or db) I still had the dreaded > failures. Sporadic too. I'd be clicking around the app briskly with no > issues and then a few minutes later it would just return 500. All URLs > on my site require Admin/Login at the moment as it is not released and > therefore gets very low traffic - just me testing. Whilst all this was > going on the dashboard access was fine and I could use the dashboard's > data viewer page no problem either. > > Here is a successful get for a URL that does use memcache and db: > 09-21 11:22PM 48.003 /food/view 200 68ms 79cpu_ms 3kb Mozilla/5.0 > > but often got: > > 09-23 01:27AM 52.163 /food/view 500 10011ms 0cpu_ms 0kb.... > 09-22 07:56AM 06.435 /food/view 500 10173ms 0cpu_ms 0kb Mozilla/5.0 > 09-22 07:55AM 38.587 /food/view 500 27768ms 0cpu_ms 0kb Mozilla/5.0 > 09-22 07:22AM 05.410 /food/view 500 10009ms 0cpu_ms 0kb Mozilla/5.0 > 09-22 07:21AM 55.090 /food/view 500 10069ms 0cpu_ms 0kb Mozilla/5.0 > 09-21 03:12PM 43.961 /food/view 500 10413ms 0cpu_ms 0kb Mozilla/5.0 > 09-21 03:06PM 45.757 /food/view 500 10036ms 0cpu_ms 0kb Mozilla/5.0 > 09-21 01:10AM 21.571 /food/view 302 2ms 0cpu_ms 0kb Mozilla/5.0 > > Request was aborted after waiting too long to attempt to service your > request. This may happen sporadically when the App Engine serving > cluster is under unexpectedly high or uneven load. If you see this > message frequently, please contact the App Engine team. > > Even the simple About page that is just a django template: > 09-23 07:19AM 20.750 /content/about 200 82ms 0cpu_ms > 09-23 02:54AM 27.894 /content/about 500 10002ms 0cpu_ms 0kb Mozilla/ > 5.0 > 09-23 01:57AM 00.374 /content/about 200 78ms 0cpu_ms > 09-23 12:59AM 54.452 /content/about 500 10085ms 0cpu_ms 0kb Mozilla/ > 5.0 > 09-23 12:32AM 26.253 /content/about 200 4597ms 20cpu_ms 2kb Mozilla/ > 5.0 > 09-21 03:07PM 12.443 /content/about 500 10188ms 0cpu_ms 0kb Mozilla/ > 5.0 > > Request was aborted after waiting too long to attempt to service your > request. This may happen sporadically when the App Engine serving > cluster is under unexpectedly high or uneven load. If you see this > message frequently, please contact the App Engine team. > > HTH? > > -- > 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]<google-appengine%[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.
