4 ms·
You can modify the question to be well-defined and not suffer those measurement problems, eg "the total number of videos uploaded before midnight UTC on 2021-04
by zodiac 5y ago
You can modify the question to be well-defined and not suffer those measurement problems, eg "the total number of videos uploaded before midnight UTC on 2021-04-29"
- suprfsat 5y agoInteresting, I wonder if a distributed database could be developed to consistently answer queries phrased in this way.
- hderms 5y agoSeems like it would either need to be append only or have some kind of snapshot isolation
- mmcconnell1618 5y agoGoogle Developed Spanner which is a globally distributed database that uses atomic clocks to keep things synchronized: https://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf https://static.googleusercontent.com/media/research.google.c...
- zodiac 5y agoI think the Chandy-Lamport snapshot algorithm tries to do something like this for all distributed systems (in their model, and it tries to get any consistent snapshot, not allowing you to specify the "time"); not sure if it's actually useful IRL though