Apache Kafka is the open-source distributed event streaming platform built for data-driven apps that needs real-time handling of the data. Kafka was open-sourced by LinkedIn in 2011. Its use-cases are endless and it's used by thousands of companies for various operations to process real-time data. Kafka provides several [APIs] to process the data streams in real-time with low latency and high throughput. It's used in major companies like Airbnb, Netflix, LinkedIn, etc. It includes publish (write), subscribes (read), store and processes the stream of events for various operations according to the use-case of the application. It uses Binary protocol over TCP for Communication. Since it is open-source licensed under Apache License 2.0, it helps us to examine the code further to explore the inner workings and structure of Apache Kafka with the free static code analyser tool Embold.
The results are surprisingly interesting.