Anyway, if you're awake late tonight (or you're in Europe) and LJ is being a little slow for 15 minutes to a half hour, that's why.
This is a necessary upgrade of MySQL to get replication working reliably on Kenny so we can have backups, the directory, and more speed.
For the curious: the problem is that MySQL 3.23.33 adds to its binary change log for replication DROP TABLE statements on temporary tables, so then the query fails on the slave servers. It's since been fixed (3.23.37 is what I'm upgrading to), but I haven't wanted to stop the database.
Update: That didn't sound too optimistic. With luck, traffic will be low enough that the restart won't actually affect anything.