Reliability & Delivery

In this module, we explore the mechanisms Kafka uses to guarantee data safety in the face of hardware failures and network partitions. You will learn how to configure Kafka for zero data loss and exactly-once processing.

Module Contents

1. Replication and ISR

Understand the anatomy of a partition, the role of Leaders and Followers, and how the In-Sync Replica (ISR) list guarantees durability.

2. Leader Election

Learn how the Controller orchestrates failovers and how Leader Epochs prevent “Split Brain” scenarios.

3. Idempotent Producers

Eliminate duplicate messages caused by network retries using Producer IDs and Sequence Numbers.

4. Transactions (Exactly-Once)

Achieve atomic writes across multiple partitions and topics using Kafka Transactions and the read_committed isolation level.

5. Quotas and Throttling

Protect your cluster from “noisy neighbors” by enforcing bandwidth and request rate limits.

Review & Cheat Sheet

Test your knowledge with interactive flashcards and a quick-reference cheat sheet for reliability configurations.

Module Chapters