What is GroupMQ?
GroupMQ is a fast, lightweight job queue for Node.js backed by Redis that guarantees per-group FIFO processing. Any worker can process any groupId, but only one job per group runs at a time.
Why use it?
Section titled “Why use it?”- Per-group FIFO ordering without global bottlenecks
- Minimal, BullMQ-inspired API
- Scales horizontally across workers
- Built-in retries, delays, and repeating jobs (cron)
- Designed for performance and low Redis load
Core ideas
Section titled “Core ideas”- A Queue stores jobs partitioned by
groupId - Workers reserve jobs while ensuring at-most-one active job per group
- Ordering is preserved using
orderMsand optionalorderingDelayMs