UPDATE: 2:30pm. It’s back up again, albeit a little slow as it builds up a “cache.” No data was lost.
The main server went down last night around 5am. The situation is NOT serious. The slave server never went down, so there should be zero data loss. I also have backups of all the critical data from a few hours before the crash.
I’m waiting to do the restore because turning the slave into the master is something I’ve never done. LibraryThing’s database admin is going to do it, and he’s in California, dreaming untroubled dreams. I’ll wake him up in a half-hour or so.