Thank you for posting the charts; very interesting to compare the results between the two apps.
A few months ago I had similar slow instance startup problems whereby the request timer was often already between 5s and 30s before the first logging statement at the very top of my app's main py file had been executed. I posted here and in the issue tracker but never found out if Google took an action or the problem cleared up on its own. Needless to say it seems clear that individual applications can have very slow instance startup (in my estimation caused by queuing because all the app server slots which the app is eligible to deploy to are busy) even when the app engine status is itself indicated as "normal". All the developer can do is ask for a fix. On Nov 30, 4:12 am, Tim Hoffman <zutes...@gmail.com> wrote: > Hi > > For the last week I have been continually complaining about a high > incidence of DeadlineExceededErrors hitting only one of two instances > running the same code at exactly the same time each day. I have yet > to get any sort of response from google. > > As promised I have written up in more detail what we are experiencing, > graphed response times over several dats, presented debugs logs and > generally discussed what I believe is going on. > > The full document and supporting data can be viewed here, > > http://docs.google.com/Doc?docid=0Ad1LTa6ONStgZGYzcXhjeHBfMTIwZGs2NWd... > > It is clear to me that app engine instance performance (specifically > startup times) can be heavily influenced by where your app has been > deployed and what is going on inside google, and this can have more > impact on how your applications perform than your own code. > > I hope have done enough to attract some attention from google staff > and would really like to discuss with them their take on my findings > and look at ways of resolving this issue. > > Regards > > Tim Hoffman -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
