Extreme Sharding: One SQLite Database Per User

Question

I\'m working on a web app that is somewhere between an email service and a social network. I feel it has the potential to grow really big in the future, so I\'m concerned about

Answer 1

http://freshmeat.net/projects/sphivedb

SPHiveDB is a server for sqlite database. It use JSON-RPC over HTTP to expose a network interface to use SQLite database. It supports combining multiple SQLite databases into one file. It also supports the use of multiple files. It is designed for the extreme sharding schema -- one SQLite database per user.