And we are back up. Sorry for the downtime, y'all.
We ran completely out of disc space and things ground to a halt. After a lot of swearing I was able to free up enough space to run the command that clears out the local cache of media from other instances, and, well... that sure was a lot of space, wasn't it?
I created a bogus file that does nothing but waste about as much space as I had to clear out before I could get this running.
I think I also definitely need to get that "delete old stuff cached from remote instances" task running regularly.
https://dragon.style/media/DyZjYavQFvvSSGNbrw0