Distributed ledger with the RAFT consensus protocol

While having a unique and centralized database allows pyledger to significantly simplify the ledger infrastructure, it becomes a single point of failure. However, since the database is a pluggable component in pyledger, you can turn pyledger into a distributed ledger using a distributed database.

One interesting choice is rqlite, a distributed and relational database built on SQLite where all the nodes reach a consensus based on the RAFT protocol.

To integrate rqlite with pyledger you must install the packages sqlalchemy_rqlite and pyrqlite, and run pyledger with the following arguments:

python examples/hello/server.py --db rqlite+pyrqlite://localhost:4001 --sync