We have some new hardware we'll be installing in the next couple of days while Brad is in Seattle. Along with that we'll be setting up new database clusters, new memcache servers and other fun stuff. However, there is more work than we could limit to doing at night, so we will be doing some work starting in the next hour. Some users may find their journals inaccessible for few minute periods.
We will update as we have new information.
Update: We finished the work that impacted journal accessibility, so there should be no problems updating now.
Another Update: Database errors right now are not due to the work we have been doing, but we are working to resolve those as well. Thanks for your continued patience.