Korvet

Korvet is a Kafka-compatible streaming service backed by Redis Streams.

This documentation is for Korvet version 0.9.1.

Korvet is developed by Redis Field Engineering. To report bugs, request features, or receive assistance, please file an issue.

Overview

Korvet provides a Kafka-compatible API backed by Redis Streams:

  • Kafka compatibility: Use existing Kafka clients and tools

  • Redis Streams: High-performance, durable message storage

  • Consumer groups: Coordinated consumption with offset tracking

  • Low latency: Sub-millisecond read/write performance

Key Features

  • Kafka Protocol Support: Compatible with Kafka clients (produce, consume, consumer groups)

  • Redis Streams: High-performance storage with built-in persistence

  • Consumer Groups: Full support for coordinated consumption and offset management

  • Admin API: Create/delete topics, configure retention, describe cluster

  • Production-ready: Built-in metrics, health checks, and observability

Use Cases

  • Kafka alternative: Lightweight Kafka-compatible streaming on Redis

  • Kafka migration: Gradual migration from Kafka to Redis-based streaming

  • Low-latency streaming: Sub-millisecond message delivery

  • Simplified operations: Single Redis instance instead of Kafka cluster

License

Korvet is licensed under the Business Source License 1.1.

Production use is permitted only with Redis Community Edition, Redis Cloud, or Redis Software. Non-production use (development, testing) is unrestricted. The license converts to MIT four years after each version’s publication.