Site is under ddos, traffic was around 40Mbit/s, so mysql crashed -> getwork server crashed too. I solved it by shutting down the site, so mining is working again. I'm a bit hurry right now, so this solution must be enough for this day, I'm very sorry for troubles. I'll try to fix site (maybe some requests/s limiter per IP?) afternoon UTC...
People are idiots...
That's just lame. Why someone would ddos a pool.. I guess I'm not ambitious enough to understand. I'll switch my miners back and cash out at deepbit soon.
I noticed that the total pool hash rate stayed about the same for the 2-3 hours we were completely down. My theory: Mystery Miner DDOSed the largest pool to eliminate competition. What a bastard!
Wish we had proof of that theory. Cause if we did maybe we should DDoS him. Vigilante justice!