cocagne / zpax

Paxos consensus over ZeroMQ message passing

zpax

Tom Cocagne <[e-mail]>

Overview

zpax provides generic Python implementations of Multi-Paxos and Paxos-Commit on top of Twisted and ZeroMQ.

Dependencies

• Plain Paxos
• Twisted
• pyzmq

Examples

single_value.py

Multi-Paxos used to coordinate changes to a single, shared value.

key_value.py

Multi-Paxos used to implement a simple, distributed Key-Value database. Of particular note is that this implementation includes the ability to dynamically add and remove nodes from the Paxos group.