This repository implements Hashicorp/Raft's FSM interface using BadgerDB as the underlying storage engine. BadgerDB was chosen for its combination of high performance and ease of implementation, making it an ideal choice for an FSM implementation.

1. Thread-Safe FSM Apply: Raft's single-threaded Apply design eliminates concerns about BadgerDB's transaction conflict detection
2. High Performance I/O: BadgerDB provides excellent read and write performance capabilities
3. Comprehensive Snapshot Support: Built-in backup and restore functionalities make FSM implementation straightforward

One of my application uses memory as a level2 cache, so I needed a general-purpose level1 cache similar to Redis ( though performance doesn't need to match Redis since most requests don't access the database). However, I required better consistency and reliable KV storage, which led to the creation of this project.