--- It's still very early days and this is experimental code, read: "Here be dragons" ---
 
Spinal is lightweight middleware for bidirectional process distribution over TCP.
It comes in three parts all currently implemented in Ruby:
 
spinald - This is the server daemon, it manages connections and distributes requests. Servers are cluster-able in a share nothing style architecture.
 
Spinal Client Library - The client Library makes it super simple to delegate work to a Spinal Service, requests can be blocking or asynchronous.
 
Spinal Service Library - Use the service library to implement workers. As with servers, services are cluster-able and distributed.
 
See etc/demo for a simplified example using Rack as a client to a directory service.