And I don't see the issue with short expiry. The point of a cache is to reduce load, not to entirely eliminate it. Even with a 5m expiry, it's still 5 orders of

And I don't see the issue with short expiry. The point of a cache is to reduce load, not to entirely eliminate it. Even with a 5m expiry, it's still 5 orders of magnitude better than having a 100+ QPS on your server.