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Gopi Gorantala

Staff engineer architecting Kafka and Flink platforms for banking, where a dropped event is a reconciliation break, not a retry. Through javahandbook.com, I share production-tested guidance on building reliable event-driven systems.

  • Belgium
  • 195 Posts
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Anatomy Of Kafka Topic

Scope of Variables, Methods, & Anonymous classes

This lesson introduces the basic lambda expression structure with tips to write efficient code.

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The Passport Lifecycle domain

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Kafka vs databases, ETL and traditional queues

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Kafka vs RabbitMQ vs ActiveMQ

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Events as facts, not commands

Learn why Kafka events are immutable facts, not commands, and how that decouples services. Modeled on the passport lifecycle with Java 21 records.

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The distributed commit log explained

Learn the single data structure — the append-only, partitioned commit log — that makes Apache Kafka fundamentally different from a queue or a database.

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Getting Started With Apache Kafka

Apache Kafka is a distributed event streaming platform built for high-throughput, fault-tolerant, real-time data pipelines. In 60 seconds, learn the core mental model every Java developer needs before writing a single line of Kafka code.

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Where Kafka Came From: The LinkedIn Data Pipeline Problem

Learn why Apache Kafka was built to solve the N×N integration mess, and the problem Kafka was built to solve. Meet the Passport Lifecycle project we'll build all program long.

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The Problem Before Kafka

Learn why Apache Kafka was built to solve the N×N integration mess, and the problem Kafka was built to solve. Meet the Passport Lifecycle project we'll build all program long.