For some reason the server problems we experienced when I first migrated the site started again today.
Still trying to solve these on a permanent basis. Very disappointing this happened. Site just hangs intermittently until I restart httpd. Seemed to be somewhat related to some error handling problems last month, which I fixed, but now I have no idea.
Anyone who wants to take a shot at guessing what's wrong, go ahead.
Let me know if it goes down again. I'm not at home. Whipped out the laptop and fixed it just now.
Any of the nerds here want to take a guess why it just hangs sometimes, and why restarting httpd fixes it? Googling the matter has been unhelpful.