But everyone sees the same edited version when not logged in, which is the vast majority of users, so you can just throw a huge cache in front, which is what they do. And most edits only touch one page, so the churn is tiny relative to the cache size.
This is a much easier service to reliably engineer than something like Twitter. For SRE purposes, Wikipedia is mostly static.
This is a much easier service to reliably engineer than something like Twitter. For SRE purposes, Wikipedia is mostly static.