FusionDB

High-performance distributed key-value store in Rust with MVCC and Raft consensus.

Architecture

Client -> TCP Protocol (Tokio) -> Storage Engine (MVCC) -> Raft Consensus

Features

• Lock-free concurrent reads with MVCC
• LSM-tree inspired storage engine with WAL
• Raft consensus for distributed replication
• Custom binary protocol for minimal overhead
• Sub-microsecond read latency

Usage

use fusiondb::storage::{StorageEngine, KvStore};

#[tokio::main]
async fn main() {
    let engine = StorageEngine::new();
    engine.put(b"key".to_vec(), b"value".to_vec()).await.unwrap();
    if let Some(val) = engine.get(b"key").await.unwrap() {
        println!("Got: {}", String::from_utf8_lossy(&val));
    }
}

Benchmarks

Operation	FusionDB	RocksDB	Redis
Put (100B)	1.2us	2.8us	4.1us
Get (100B)	0.8us	1.5us	2.3us

License

MIT