KVDB - Distributed Key-Value Database

A distributed key-value database built from scratch in Go, featuring Raft consensus, TCP-based communication, and crash recovery mechanisme.

Current Status

This is a learning project and not production-ready

Implemented Features

Core Functionality

• Basic KV Operations: PUT, GET, DELETE commands
• REPL Interface: Interactive command-line interface
• In-Memory Storage: Fast key-value storage with concurrent access

Persistence & Recovery

• Write-Ahead Log (WAL): Append-only log for crash recovery
• Snapshot System: Periodic state snapshots for log compaction
• Crash Recovery: Automatic recovery from WAL and snapshots
• Data Durability: Guaranteed persistence of committed operations

Distributed Consensus

• Raft Implementation: Leader election and log replication
• TCP Communication: Custom binary protocol for node communication
• Cluster Managemenet: Multi-node coordination and failure handling
• Leader Election: Automatic leader failover and recovery

Network Layer

• TCP Server/Client: Custom protocol with message framing
• Binary Protocol: Efficient network communication
• Connection Management: Persistent connections between nodes
• Message Routing: Reliable message delivery between nodes