Lemmy.world has been down between 02:00 UTC and 05:45 UTC. This was caused by the database spiking to 100% cpu (all 32 cores/64 threads!) due to inefficient queries been fired to the db very often.
I’ve collected the logs and we’ll be checking how to prevent this. (And what caused this)
All Lemmy instances are test environments right now. It’s just that lemmy.world is being tested the hardest.