go-vsrevisited

Golang implementation of Viewstamped Replication revisited protocol. Covered under blogpost Implementing Viewstamped Replication

How to run?

// Build the project
go build

// It's a 5 node cluster starting from port 8000 - 8004. So run the 5 server nodes
./vsrevisited server 8000
./vsrevisited server 8001
./vsrevisited server 8002
./vsrevisited server 8003
./vsrevisited server 8004

// Run the client on any port except 8000 - 8004
./vsrevisited client 7000

Demo

Client operation with consensus across clusters(Node on port 8000 is leader)

First view change. (Node on port 8001 becomes leader)

Node recovery. (Node on port 8000 comes back up)

Second view change. (Node on port 8002 becomes leader)

ToDo

• Add optimization for storing state on disk for faster recovery
• Implement the reconfiguration protocol