...

On that note; currently the MySQL server is running at 99.5% CPU. Whatever it's doing, it's slowing the wiki to a trickle; I can't even get a connection through.

...and we're back online, after an outage of about 2 and a half hours.

I just noticed the outage, so I killed and restarted MySQL. I guess I picked a bad time to tell people to start ad-hoc queries.