This article argues against the notion that Postgres can replace Kafka, highlighting their distinct purposes. It explains how using Postgres for event streaming can lead to challenges and inefficiencies, particularly for use cases Kafka is designed to handle.

This article details LinkedIn's transition from Zookeeper to a new scalable service discovery system designed to handle the demands of a growing number of microservices. The new system, which uses Kafka and a Service Discovery Observer, improves scalability, compatibility, and extensibility while supporting multiple programming languages.

Implementing the Saga pattern in microservices can improve data consistency across distributed systems. The article discusses how to leverage NestJS and Kafka for managing complex transactions in microservices architecture, providing examples and best practices for effective implementation.

Kafka poses significant challenges for securing cardholder data in compliance with PCI-DSS, particularly due to its lack of built-in encryption for data at rest. Kroxylicious, a Kafka protocol-aware proxy, enables end-to-end encryption of sensitive payment information without requiring code changes to existing applications, thus simplifying the implementation of security measures in a microservices architecture. The article discusses how to set up Kroxylicious to encrypt Kafka messages effectively.