This repository contains code that will (probably) end up some day into a real set of Ruby objects that will be runnable and able to establish a consensus and replicate/share data across all the nodes.
It is under development and won't be release anytime soon. The code could be a little rough on the edges as it's basically a very large file, but here's the main idea:
- Each node must be independant.
- Nodes can be run with threads within the same Ruby VM or could be run within separate processes.
- The current communication mechanism is
DRb.DRbis a built-in protocol that is really easy to setup but it should be made replaceable byZeroMQ,RabbitMQ,Thrift,ProtoBuf, ... any other communication layer.
There's almost no structure, but the Proof of Concept is working:
- nodes are talking to each other
- nodes can elect a leader
- candidates and followers know how to become leaders if needed
- a node can be killed and other nodes can proceed to another consensus
- Extract nodes
- Extract communication layer
- Extract launcher
- Ensure concurrence/parallelism is OK (Tested with MRI only)
GPLv3 until a potential release. It will end up LGPLv3 or MIT.