10 hours ago
- Disque is a new message broker system developed by antirez (Salvatore Sanfilippo), the creator of Redis, as a side project.
- It originated from the observation that many developers use Redis as a message queue, despite Redis not being optimized for immutable messages.
- Disque aims to fill the gap between overly simple and overly complex message brokers, offering a 'Redis of messaging' with a low barrier to entry.
- The system guarantees at-least-once delivery by default, with optional at-most-once semantics per message, using acknowledgments and automatic retries.
- Disque is a distributed, AP (available and partition-tolerant) system that scales horizontally, even for single-queue scenarios.
- It sacrifices strict message ordering in favor of best-effort FIFO ordering, using a wall-clock timestamp and incremental ID.
- Durability is achieved through synchronous replication across nodes, with optional AOF persistence for upgrades or mass reboots.
- Disque supports delayed jobs, named queues, consumer blocking, and transactional message posting with configurable replication.
- The codebase is a fork of Redis with Redis-specific parts removed, allowing Disque to diverge as needed while reusing Redis's networking and protocol infrastructure.
- Currently, most features are implemented (except AOF persistence), and the source code is available on GitHub.