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Coalescing and “origin shielding” tend to be more common terms for that - I’ve never heard of “grace” until today :)
by loloquwowndueo 2y ago
Coalescing and “origin shielding” tend to be more common terms for that - I’ve never heard of “grace” until today :)
- atombender 2y agoVarnish does call it coalescing. Grace is used for a specific situation: When a previously cached object has expired, Varnish won't evict it from the cache immediately, but will continue to serve the old content, while sending exactly 1 request to the background to refetch. How long an object can live after expiring is called the grace. The HTTP standard calls this behaviour "stale-while-revalidate".