How do you generate sequential IDs a quadrillion times a day if they're coming from 100 different computers? Lots of very fast coordination.
In the new system, they don't have to coordinate every server just to make sure IDs are sequential. They just use the time stamp and some machine-specific information.
In the new system, they don't have to coordinate every server just to make sure IDs are sequential. They just use the time stamp and some machine-specific information.