If you are into software development and services, I am sure you will have heard terms such as database, tables, records, and so on. In a database, we have multiple tables; let's say, Items, Price, Sales, Inventory, Purchase, and many more. Each table contains data of a specific category. There will be two parts in the application: one will be inserting records into these tables and the other will be reading records from these tables. Here, tables are the topics in Kafka, applications that are inserting data into tables are producers, and applications that are reading data are consumers.
In a messaging system, messages need to be stored somewhere. In Kafka, we store messages into topics. Each topic belongs to a category, which means that you may have one topic storing item information and another may store sales information. A producer who wants to send a message...