Asynq

What Asynq is

Asynq is a Go library for queuing tasks and processing them asynchronously with workers, using Redis as its backend. It supports at-least-once execution, retries after failures, and automatic recovery after a worker crash. Tasks can be scheduled or run periodically, with controls for weighted and strict priority queues, pausing, deduplication, timeouts, and deadlines. The project describes using multiple worker servers and brokers for high availability and horizontal scaling. For monitoring and queue operations, it lists Prometheus metrics integration, plus a web UI and CLI for inspecting and remotely controlling queues and tasks. The companion Asynqmon tool can run as a binary or be imported as a library, and supports Prometheus time-series data. The quickstart requires Redis 4.0 or higher, and Redis Sentinel is supported; the project cautions that some Lua scripts may not work with Redis Cluster. Asynq is free and open source under the MIT license. Its current major version is 0.x, and the public API may change before version 1.0.0.

Who it suits

It suits Go developers building Redis-backed background task queues, scheduled jobs, or worker-based processing. Teams using it should be prepared for possible public API changes before version 1.0.0.

Limits

Redis version 4.0 or higher is required. The project cautions that some Lua scripts may not be compatible with Redis Cluster, and the public API may change before version 1.0.0.

Getting started

1. Visit the Asynq project at https://github.com/hibiken/asynq.
2. Use a self-hosted deployment.
3. Set up Redis version 4.0 or higher.
4. Use the Go library to queue tasks for workers.
5. Use the listed web UI or CLI to inspect and remotely control queues and tasks.

Verdict

Asynq provides task queueing and worker processing for Go applications backed by Redis, with scheduling and operational controls. Check Redis compatibility and the 0.x API status when assessing it for a project.