Maple down?

Of course it rolled back if they lost power, it's not like they save the database every 15 seconds.

Huh?
Normal databases flush (force write) every completed transaction to permanent storage. Obviously I have no idea how Nexon configured their database, they might be saving I/O time by buffering several transactions at at time, but they have to be outright absurd if they "roll back" more than a second due to power out.
Note that "saving the database" in this case doesn't require exporting it (i.e., exporting the whole thing to a safe copy).

Personally I'd kind of like it if they roll back about 10 minutes. Would give me back 6 wasted cubes and a semi-useful Executioner (it had 6% str and 12 w.att before I starting tossing those cubes at it). But, I don't hold any high hopes of that happening.