Damjan, i use GAE heavily, here's what i can say based on what i see: - each call to URL() puts at least one message in the debug log. so whatever you are doing has lots of calls to URL() in it. - logging can be affected by logging.conf, but i've never successfully suppressed logs i didn't care about and got logs i liked. - i don't get random deadline exceeded messages on GAE, i do get them when i write bad code. one such mistake i made was running a query in a model file (db.py) that returned lots of rows.
if you can provide a simple model + controller that exhibits the problem we can help troubleshoot. christian

