Apache Kafka 4.3 Explained: KRaft, Diskless Topics, No ZooKeeper, S3 Storage

Apache Kafka is going through its biggest architecture shift yet — ZooKeeper is gone, and Kafka can now run without local disks entirely. In this video, we break down everything new in Kafka 4.0 through 4.3, including: ✅ Why ZooKeeper has been fully removed (and what replaced it) ✅ KRaft — Kafka's built-in consensus protocol, explained ✅ Diskless topics — how Kafka now writes directly to object storage (S3) ✅ Why diskless architecture can cut storage costs by up to 90% ✅ What this means for running Kafka in the cloud ✅ Key things to check before upgrading your cluster Whether you're running Kafka in production or just keeping up with the ecosystem, this is the update you need to know about. 📩 Want Kafka interview prep notes & Q&A? DM me and I'll share them with you! 🔗 Useful links: Apache Kafka docs: https://kafka.apache.org