Yeah, I saw that. Given their "solve" though, this seems like an odd place they ended up no? They're going to have redundant copies on other machines the ScyllaDB anyway (which also has its own caching mechanism), so a failure on a read isn't that catastrophic (and in the cloud, you just spin up a new node and terminate the old one... something ScyllaDB handles very gracefully).
Yeah, I was thinking about this too. If you have to restore on a new node anyway, why have the persistent store anyway. The only reasonable answer I could think of was if they lost the whole data enter to a fire or something. They’d be able to restore the data in another zone, but that assumes they are using replicated persistent storage, which they didn’t mention. If the data isn’t replicated to another zone, this solution doesn’t make any sense.
