5 ms·
My new requirement is NOT physically impossible. I did not mean "immediately" as in "zero milliseconds", it meant strong read-after-write consistency. It makes
by phailhaus 2mo ago
My new requirement is NOT physically impossible. I did not mean "immediately" as in "zero milliseconds", it meant strong read-after-write consistency. It makes facebook so slow and unscalable as to be unusable. Facebook deliberately decided that stale reads are worth it for responsiveness and scale.
- deterministic 2mo agoSo your argument is that no solution could satisfy your new requirement, not even if Facebook rewrote the entire system from scratch. If that's the case, then your example doesn't really address what we're discussing: whether software can be designed to remain flexible under realistic requirement changes. A stronger argument would be to give an example of a realistic requirement change that would force all possible software architecture to be rewritten from scratch. Do you have an example like that?
- phailhaus 1mo ago> So your argument is that no solution could satisfy your new requirement No, read my comment again. They could do it but it would absolutely destroy the responsiveness of the app.