Cloud-Native, Distributed Messaging and Streaming Apache Pulsar is an open-source, distributed messaging and streaming platform built for the cloud.

• Apache Pulsar @ GitHub.

Related contents:

• Log Replication Disaggregation Survey - Apache Pulsar and BookKeeper @ Jack Vanlightly.

A MQTT broker that is scalable, enterprise ready, and open source.

A distributed MQTT message broker based on Erlang/OTP. Built for high quality & Industrial use cases. The VerneMQ mission is active & the project maintained. Thank you for your support!

• VerneMQ @ GitHub.

Background Jobs processing and message queue for NodeJS. The fastest, most reliable, Redis-based distributed queue for Node. Carefully written for rock solid stability and atomicity.

Scale your background job processing using Node.JS. BullMQ is a fast and robust background job processing library for Redis™.

BullMQ is a Node.js library that implements a fast and robust queue system built on top of Redis that helps in resolving many modern age micro-services architectures.

• BullMQ @ GitHub.

The Distributed Task Queue for More Resilient Web Applications

Hatchet is a distributed, fault-tolerant task queue which replaces traditional message brokers and pub/sub systems - built to solve problems like concurrency, fairness, and durability.

Hatchet replaces difficult to manage legacy queues or pub/sub systems so you can design durable workloads that recover from failure and solve for problems like concurrency, fairness, and rate limiting. Instead of managing your own task queue or pub/sub system, you can use Hatchet to distribute your functions between a set of workers with minimal configuration or infrastructure:

• Hatchet @ GitHub.

Swarrot is a PHP library to consume messages from any broker.

Messaging that just works. RabbitMQ is the most widely deployed open source message broker.

• RabbitMQ Server @ GitHub.

Related contents:

• How I solved a distributed queue problem after 15 years @ DBOS.
• When Fast Flow Delivers A Real Blow: A PIR @ Uptime Labs.