Load balancing and fail-over with Furnace
Furnace framework

Prev:Furnace authentication
Next:Form submission referrer checking

The Furnace session manager persists sessions to a database. This means that HTTP requests can be transparently distributed between multiple Factor HTTP server instances, running the same web app on top of the same database, as long as the web applications do not use mutable global state, such as global variables. The Furnace framework itself does not use any mutable global state.