Have you actually investigated the source of the spike? And what exactly the errors where - ie looking the logs, rather than just the number of errors?
For example it could of been a script scanning for vulnerablities (such as searching for all the folders phpmyadmin could be installed in) - and these urls are not understood by the application, and so generate an error. - something like that needs proactive blocking to minimise your resource used for these requests. On 9 February 2011 08:44, Henric Persson <henric.pers...@kanal5.se> wrote: > Last night we had a sudden traffic spike at 21:00 (CET). Requests were at a > steady 40 req/s when we suddenly had more than 400 req/s. This led to our > application being almost entirely down for about 10-15 minutes. I think that > it’s because many new app instances are being fired up at the same time. Is > there anything we can do to “prime” our application to handle these > situations in a better way? Could it be that our application takes too long > to start up? > > > Here's a graph showing number of requests/s > > <https://lh5.googleusercontent.com/_4q0OeYdmoDA/TVJS02W3LgI/AAAAAAAAAAU/5Xilqyh75Hs/spike_sofias_anglar.png> > > > And here are all the errors/s > > > > <https://lh5.googleusercontent.com/_4q0OeYdmoDA/TVJTYJKeEtI/AAAAAAAAABA/MHgNGE8niWo/spike_sofias_anglar_error.png> > > Any ideas to how we can handle these situations? Tell people not to enter > our website? ;) > > /Henric > > > > > -- > 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-appengine@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. > -- 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-appengine@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.
