Pub / Sub IPC

Greengrass 2.0 provides an inter-process communication (IPC) SDK for inter-process communication. By using IPC SDK feature, Publisher (Pub) and Subscriber (Sub) communication can be performed between each process of the custom component.

In this step, you’ll learn how to create a component that reads sensor data and keeps publishing to a topic, a component that subscribes to that topic logs and receives the messages, and a custom component that uses IPC.

Architecture

If you encounter any issues during the workshop, first see if you can find your solution in Troubleshooting section