S7E15 | Apache Kafka Controller Explained: Broker Leadership, Failover & Cluster Coordination

In this episode of PithorAcademy Presents: Deep Dive, we unpack the Kafka Controller, often called the “brain of the broker system.” The controller plays a critical role in cluster coordination, failover, and broker leadership in Apache Kafka.

We cover:

Controller Broker Role – assigning leaders and managing brokers

Cluster Metadata Management – keeping Kafka consistent

Failover Handling – ensuring resilience during broker failures

By the end, you’ll understand why the Kafka Controller is vital for high availability, fault tolerance, and smooth cluster operation, making it a cornerstone for production-grade Kafka systems.

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