Mole DB

Fast, lightweight in-memory database with Redis-compatible protocol.

Features

• Redis-compatible protocol - Use existing Redis clients
• Persistence - AOF (Append-Only File) support
• Replication - Master-replica setup
• Sentinel - High availability monitoring
• TTL support - Automatic key expiration
• Memory management - LRU eviction policies
• Fast - Built in Go for performance

Installation

npm install -g moledb

Quick Start

Start the server

mole

Server starts on 127.0.0.1:7379 by default.

Connect with CLI

mole-cli
127.0.0.1:7379> SET mykey "Hello"
OK
127.0.0.1:7379> GET mykey
"Hello"

Server Options

mole [options]

Options:
  -addr string
        TCP address to listen on (default "127.0.0.1:7379")
  -aof
        Enable AOF persistence
  -aof-path string
        AOF file path (default "./mole.aof")
  -aof-fsync string
        AOF fsync policy: always|everysec|no (default "everysec")
  -maxmemory int
        Max memory in bytes (0 = no limit)
  -maxmemory-policy string
        Eviction policy: noeviction|allkeys-lru (default "noeviction")
  -role string
        Server role: master|replica (default "master")
  -master-addr string
        Master address (required for replica)

Examples

Start with persistence:

mole -aof -aof-path ./data/mole.aof

Start replica:

mole -role replica -master-addr 127.0.0.1:7379 -addr 127.0.0.1:7380

CLI Usage

Interactive mode:

mole-cli

Single command:

mole-cli SET key value
mole-cli GET key

Connect to different host:

mole-cli -h 192.168.1.100 -p 7379

Supported Commands

• GET, SET, DEL, EXISTS
• EXPIRE, TTL
• INCR, DECR
• LPUSH, RPUSH, LPOP, RPOP, LRANGE
• SADD, SMEMBERS, SISMEMBER
• HSET, HGET, HGETALL
• KEYS, PING, INFO
• And more...

Use with Node.js

const redis = require('redis');
const client = redis.createClient({ port: 7379 });

await client.connect();
await client.set('key', 'value');
const value = await client.get('key');
console.log(value); // 'value'

License

MIT