Over the last week or so my server has been experiencing extremely high loads and frequent crashes. It has been difficult to track down the source of the problem but after a lot of back and forth with developers and my server admin I believe the problem is that many thousands of new members are being registered every day on an EE based site on the server. That site went from a few thousand members to 130,000 over the last week.
I attempted to disable new user registration in the admin but I am getting an error when I do that and the setting won’t take. Back to the admin problem later but right now I have an urgent need to turn off registration. Is there a field in the database I can alter directly to achieve this?