Steady Queue

Steady Queue is a database-backed task backend for Django 6.0+. It is a port to Python of the excellent Solid Queue backend for Ruby on Rails, and it is compatible with the django.tasks interface.

It lets you run background jobs using only your existing relational database. By leveraging SELECT FOR UPDATE SKIP LOCKED, Steady Queue provides a high-performance, concurrency-safe queuing system without the operational overhead of Redis or RabbitMQ.

Features

• Task enqueueing and processing. Using the standard @task decorator introduced in DEP 0014, with support for queue selection, delayed tasks and numeric priorities.

• No extra infrastructure. Works with MySQL, PostgreSQL or SQLite.

• Cron-style recurring tasks. Define schedules directly in your code.

• Concurrency controls. Limit how many instances of a task run simultaneously.

• Operational control. Pause and resume queues, inspect and retry failed tasks via the Django admin.

• Installation
  • Requirements
  • Steps
• Getting Started
  • Defining tasks
  • Enqueueing tasks
  • Task decorator options
  • Enqueueing after a transaction commits
  • Running the worker
  • Recurring tasks
  • Concurrency controls
• Configuration
  • TASKS setting
  • STEADY_QUEUE setting
  • Database configuration
  • Module-level settings
  • Signals
  • Logging
• API Reference
  • @recurring
  • @limits_concurrency
  • Argument serialization
  • Backend limitations
• Design & Internals
  • Actors
  • Database tables
  • Polling strategy
  • FOR UPDATE SKIP LOCKED
  • Concurrency controls
  • Process lifecycle and signals
  • Argument serialization
  • Transactional integrity
• Alternatives
  • vs django-tasks
  • vs Celery
  • vs django-rq
  • vs Solid Queue