Re: [google-appengine] Handling sudden traffic spikes

2011-02-17 Thread Wesley C (Google)
henric, i agree with barry and dale: 1. you need to find out the source of these requests. if they are a DoS attack, then you should implement a DoS filter to avoid such traffic hitting your app: http://code.google.com/appengine/docs/python/config/dos.html 2. you need to implement warmup

[google-appengine] Handling sudden traffic spikes

2011-02-09 Thread Henric Persson
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

Re: [google-appengine] Handling sudden traffic spikes

2011-02-09 Thread Barry Hunter
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