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This is a draft document. We hope to turn it into a useful guide to implementing a Kafka client, so any feedback on how to make it more useful would be much appreciated. The 0.8 release has not yet happened so there may yet be changes in the protocol described, though we hope to minimize them. We feel this is stable enough that people can build against it without major disruption.

Introduction

This document covers the protocol implemented in Kafka 0.8 and beyond. It is meant to give a readable guide to the protocol that covers the available requests, their binary format, and the proper way to make use of them to implement a client. This document assumes you understand the basic design and terminology described here.

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