Kafka Fault Tolerance Explained | Node Failure, Leader Election & ISR Demo (Ep 15)

Kafka Fault Tolerance explained with a live node failure demo. In this video, we simulate Kafka broker failures while producers and consumers are actively sending and receiving messages. This helps demonstrate how Kafka maintains high availability using replication, leader election, and in-sync replicas (ISR). Topics covered: • What is Kafka Fault Tolerance • Leader and Follower replicas • In-Sync Replicas (ISR) • Replication factor explained • What happens when a Kafka broker goes down • Leader election during node failure • How producers and consumers behave during failures We intentionally shut down Kafka brokers while the application is running to observe how the Kafka cluster recovers and elects a new leader. This is part of the complete Kafka deep dive series where we explore Kafka internals with real demonstrations. Watch the full Kafka series here:    • Kafka- Zero to Hero   Redis:    • Redis- Zero to Hero   LLD:    • LLD   Multithreading:    • Multithreading: Zero to Hero   System Design:    • System Design at Scale   Chapters: 00:00:00 Console Demonstration – Kafka Fault Tolerance 00:11:15 Coding Demonstration – Kafka Fault Tolerance #Kafka #KafkaArchitecture #DistributedSystems #KafkaTutorial #DataEngineering #EventDrivenArchitecture