#Kafka

Apache Kafka provides distributed event streaming for high-throughput data pipelines. Articles cover Kafka consumer group design in Kubernetes, payment settlement stream processing, and the operational patterns for running Kafka-backed architectures with exactly-once delivery guarantees.

10 posts tagged with kafka. ← All posts

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Pratik Dhanave · ·5 min read

Kafka in Production

Kafka's defaults will run; whether they'll survive a broker failure, a traffic spike, or a year of growth depends on a handful of decisions — replication, durability, partitioning, and what you monitor — that are far cheaper to make now than to retrofit later.

Kafka's defaults will run; whether they survive a broker failure, a spike, or a year of growth depends on a handful of decisions — replication, durability, partitioning, and what you monitor.

Pratik Dhanave · ·5 min read

Event-Driven Patterns

Kafka gives you a durable log; these patterns are what you build on it — event sourcing, CQRS, the outbox, sagas, and the choice between choreography and orchestration — the vocabulary of real event-driven systems.

Kafka gives you a durable log; these patterns are what you build on it — event sourcing, CQRS, the outbox, sagas, and the choice between choreography and orchestration.

Pratik Dhanave · ·5 min read

Schemas and Event Design

In an event-driven system your events are a public API that outlives every service that reads them, so how you shape them and how you evolve them without breaking consumers is not a detail — it is the contract the whole architecture rests on.

In an event-driven system your events are a public API that outlives every service that reads them, so how you shape and evolve them without breaking consumers is the contract the whole architecture rests on.

Pratik Dhanave · ·5 min read

Delivery Semantics and Exactly-Once

"Exactly-once" is the most misunderstood phrase in streaming — it is real in Kafka, but only within a specific boundary, and outside that boundary the honest and usually-correct answer is at-least-once plus idempotent consumers.

'Exactly-once' is the most misunderstood phrase in streaming — it's real in Kafka, but only within a specific boundary, and outside it the honest answer is at-least-once plus idempotent consumers.

Pratik Dhanave · ·5 min read

Consumers and Consumer Groups

A single consumer reading a topic is easy; the elegant part is how Kafka lets a group of consumers share the work automatically, rebalance when members come and go, and each remember exactly where it left off.

The elegant part of Kafka is how a group of consumers shares the work automatically, rebalances when members come and go, and each remembers exactly where it left off.

Pratik Dhanave · ·5 min read

Producers: Writing Events

A producer looks trivial — send a record to a topic — but the three decisions it makes (which partition, how durably, how safely on retry) determine your ordering, your durability, and whether retries create duplicates.

A producer looks trivial, but the three decisions it makes — which partition, how durably, how safely on retry — determine your ordering, your durability, and whether retries create duplicates.

Pratik Dhanave · ·6 min read

The Log: Kafka's Core Abstraction

Almost everything Kafka does follows from one deceptively simple idea — an append-only, ordered, durable log — and once that clicks, topics, partitions, and offsets stop being jargon and become obvious.

Almost everything Kafka does follows from one deceptively simple idea — an append-only, ordered, durable log — and once that clicks, topics, partitions, and offsets stop being jargon and become obvious.

Pratik Dhanave · ·5 min read

Why Event-Driven Architecture?

Synchronous request/response quietly welds your services together until a change in one breaks three others; event-driven architecture breaks that weld by making the event — a fact that happened — the thing services share.

Synchronous request/response quietly welds your services together until a change in one breaks three others; event-driven architecture breaks that weld by making the event — a fact that happened — the thing services share.

Pratik Dhanave · ·16 min read

Asynchronous Processing and Messaging

How queues, pub/sub, and log-based streaming let systems stay responsive under load — the delivery semantics, ordering rules, backpressure, and outbox patterns that decide whether async saves you or sinks you.

Decoupling with queues and events: message queues vs pub/sub vs log-based streaming, delivery semantics (why exactly-once delivery is a myth — do idempotent processing), ordering, backpressure, the transactional outbox, and dead-letter queues.

All posts on this site are written by Pratik Dhanave, an Agentic AI Architect with 7+ years building production distributed systems, multi-agent AI platforms, and cloud-native infrastructure. About the author → Each article includes working code, architecture diagrams, and references to the specific frameworks and standards discussed. Browse all posts or explore related topics using the tag cloud above.