I just logged in to The Comms Room (ServerFault chat) and noticed this:
Based on comments and quick look at a few rooms, seems to be all sites except Tavern on the meta.
Something seems amiss...
Sorry, this was my fault. We started about 2 weeks ago building our entire external infrastructure out in our Oregon DC (Stack Overflow's original home). To do this I copied the sites on our new OR-WEB01 -> OR-WEB04 servers over to the even newer OR-WEB05 to do this build out of the line of fire.
Well, that plan only lasts so long, eventually I need to deploy that template OR-WEB05 server to the rest of the tier...which just happened about an hour ago. Along with that we added OR-WEB05 to our haproxy load balancers out there on all the backends that matter (including chat).
So what went wrong? Chat hasn't been building on this new server (so I wouldn't break builds), so it has old connection strings pointing to a SQL 2008 server before our SQL 2012 move. We were going to nuke that box which would have prevented this from happening (by throwing errors and HAProxy taking it out), but that didn't happen for other reasons.
We made a few changes to further ensure this doesn't happen again (the SQL 2008 databases are gone this time), and we should be set from now on.
We're making a lot of changes to our Oregon datacenter where chat runs. We're doing our best to ensure you don't even know about it until we actually turn the lights on, so to speak.
This Saturday we'll be doing a test run of hosting the entire Q&A network in Oregon (read/write, not read-only), while we're testing everything we can ahead of time, there may be issues...that's why it's a test. We'll be doing another test in a few weeks with Careers, openid.SE, and Apptivate. We'll get a blog post up on what the plans are today or tomorrow at the latest for those that are curious, and a heads up to everyone.