As Brad said, last night's upgrade didn't go very well.
We're trying round 2 (same upgrade, but with much more information about what didn't work last night) tonight. The site will either be down, or some journals on the Chef Cluster (where am I?) will either be read-only or unavailalbe.
We're planning on beginning around 1 a.m. PDT (0600 GMT), and assuming no more disasters crop up, we should be done by 3.
Thanks yet again for your patience.