Description: Apache Pulsar is an open-source distributed pub-sub messaging system originally created by Yahoo and now under the Apache Software Foundation. It is horizontally scalable, provides low latency and durable storage for messages.
Type: software
Pricing: Free
Description: nanomsg is an open source library that provides a simple high-performance messaging system for distributed and concurrent applications. It implements several common messaging patterns such as request/reply, publish/subscribe, and survey. nanomsg is designed to be lightweight, scalable, and portable across operating systems and languages.
Type: software
Pricing: Open Source