Distributed sequence number generation?

Question

I\'ve generally implemented sequence number generation using database sequences in the past.

e.g. Using Postgres SERIAL type http://www.neilconway.o

Answer 1

If it really has to be globally sequential, and not simply unique, then I would consider creating a single, simple service for dispensing these numbers.

Distributed systems rely on lots of little services interacting, and for this simple kind of task, do you really need or would you really benefit from some other complex, distributed solution?