Producing Messages to Kafka

In this lesson, we'll learn how to send messages (also called records) to Kafka topics. This is the job of a Kafka Producer.

Think of a producer as an application or service that generates data. It then sends this data to a Kafka cluster, where it's stored in specific topics for other applications to read.

• Producers generate data.
• Topics organize data streams.
• Brokers store the data.

To send data, your application uses a Kafka Producer client library. This library handles all the complex interactions with the Kafka brokers.

It takes care of:

• Finding the right Kafka broker.
• Serializing your data into bytes.
• Retrying failed send operations.
• Balancing message distribution.

We'll use Java examples, but the concepts apply across languages.