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apache/dubbo

Java implementation of Apache Dubbo, an RPC and microservice framework for building service communication, discovery and traffic management.

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What is it?

Apache Dubbo is a Web and RPC framework for building microservices. This repository holds the Java implementation, with sibling projects providing Go, Python, PHP, Erlang, Rust and Node.js/Web clients under the same umbrella.

Dubbo covers service communication over protocols such as Triple (gRPC-compatible), Dubbo2 over TCP, and REST, and integrates with registries like Zookeeper and Nacos for service discovery. It also provides traffic management, observability, tracing, security, and a visualized console. A Spring Boot Starter lets developers enable these features through a dependency and YAML configuration.

The project is organized into version lines: 3.3.x is the current line with JDK 1.8 through 25 support, while 3.2.x and 3.1.x remain available, and Dubbo2 versions are end-of-life.

Key features

  • 01Triple protocol compatible with gRPC, plus Dubbo2 TCP and REST
  • 02Service discovery through registries such as Zookeeper and Nacos
  • 03Traffic management and method-level rate limiting
  • 04Metrics, tracing and a visualized console for observability
  • 05Spring Boot Starter for configuration-driven setup

Use cases

  • Building RPC services between Java microservices
  • Migrating Spring-based services to a registry-driven microservice setup
  • Exposing Java services to gRPC or REST clients through Triple
  • Running cross-language services alongside Go or Python Dubbo clients

Quick start

  1. 1

    Follow the 5-minute lightweight RPC guide to build a service with the Dubbo SDK

  2. 2

    Or use the Spring Boot Starter guide to add Dubbo to a Spring Boot project

Things to know

  • Dubbo 2.x versions are end-of-life and no longer supported.
  • Dubbo 3.1.11 is stable but not actively maintained.
  • Dubbo 3.3.7-SNAPSHOT dependencies are not yet available.

Topics

#rpc#microservices#java#service-discovery#grpc#spring-boot#distributed-systems#dubbo#framework#http

FAQ

What is dubbo?
Java implementation of Apache Dubbo, an RPC and microservice framework for building service communication, discovery and traffic management. Apache Dubbo is a Web and RPC framework for building microservices. This repository holds the Java implementation, with sibling projects providing Go, Python, PHP, Erlang, Rust and Node.js/Web clients under the same umbrella.
Is dubbo free to use? What license does it have?
dubbo is open source under the Apache-2.0 license. Check the license terms before using it in commercial products.
Is dubbo still maintained?
Actively maintained. The last commit to dubbo was on Oct 20, 2026.
What can I use dubbo for?
Building RPC services between Java microservices Migrating Spring-based services to a registry-driven microservice setup Exposing Java services to gRPC or REST clients through Triple Running cross-language services alongside Go or Python Dubbo clients
How do I install dubbo?
Follow the 5-minute lightweight RPC guide to build a service with the Dubbo SDK Or use the Spring Boot Starter guide to add Dubbo to a Spring Boot project
Where can I get dubbo?
The source code and installation instructions are on GitHub: https://github.com/apache/dubbo

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