Queues

Amazon MQ is a managed message broker service for Apache ActiveMQ that makes it easy to set up and operate message brokers in the cloud.

(Amazon SQS) is a messaging queue service that handles message or work flows between other components in a system.

Gearman provides a generic application framework to farm out work to other machines or processes that are better suited to do the work.

Resque is a Redis-backed Ruby library for creating background jobs, placing those jobs on multiple queues, and processing them later.

NATS is a simple, secure and performant communications system for digital systems, services and devices.

NSQ is a realtime distributed messaging platform designed to operate at scale, handling billions of messages per day.

Siberite is a simple, lightweight, and reliable message queue server.

Sidekiq is a simple, efficient background processing for Ruby.