In simple words, Apache Kafka is a hybrid of a distributed database and a message queue. In order to process terabytes of information, many large companies use it. Also, for its features, Kafka is widely popular. For example, a company like LinkedIn uses it to stream data about user activity, while the company like Netflix uses it for data collection and buffering for downstream systems like Elasticsearch, Amazon EMR, Mantis, and many more.
Moreover, let’s throw light on some features of Kafka that are important for Kafka load testing: