Apache Dubbo is a powerful and user-friendly Web and RPC framework. Build apps with built-in rpc, traffic management, security, observability support that can deploy on kubernetes and vm.

## Why Dubbo?

- **Easy To Use, Let Developers Focus On Real Business**: Unified microservice development paradigm with multi-language SDK support. Supporting any protocol from HTTP/2, gRPC, REST, Thrift, to TCP.

- **Service Governance, Monitor and Control Cluster In Real-time**: Built-in traffic management policies such as service discovery, load balancing, and routing. Rich ecosystem with tracing, circuit break, transaction, logging, metrics, service mesh, and visualized console integrations.

- **High Performance，Designed For Scale**: Making the Alibaba Global Shopping Festival possible by supporting millions of instances and trillions of calls every year, it’s designed as low-latency, high-throughput, and high-scalability in the first place.

- **Production Ready, Proven Production-stable For Years**: Dubbo users has achieved full industry coverage: Commercial Bank of China, Ctrip, Haier, Kingdee, Cloud Vendors like Alibaba Cloud, Tencent Cloud, Huawei Cloud, etc.

## Core Features

- **Service Discovery**: Dubbo provides a high-performance, scalable service discovery mechanism designed for clusters with millions of instances. It offers default registry center adapters like Nacos and Zookeeper and supports custom extensions.

- **Multi-language SDK**: Provides multi-language SDK implementations such as Java, Golang, Rust, Node.js, Python, etc., supporting language-agnostic service definitions based on IDL and data encoding based on Protobuf and JSON.

- **Traffic Control**: Dubbo provides traffic control strategies based on routing rules, which can help achieve full-link grayscale, canary release, proportional traffic forwarding, dynamic adjustment of debugging time, setting retry times, and other service governance capabilities.

- **Communication Protocols**: Supports any communication protocol such as HTTP/2, gRPC, TCP, REST, etc. Switching protocols only requires modifying one line of configuration, and supports multi-protocol publishing on a single port.

- **Flexible Deployment Modes**: Start the service governance system with one click, shielding the complexity of cross-platform microservice infrastructure, and supporting various deployment modes such as virtual machines, Docker, Kubernetes, and service mesh.

- **Observability**: Multi-dimensional observable metrics (Metrics, Tracing, Accesslog) help understand the service running status. Admin console, Grafana, etc., help achieve data metrics visualization.

- **Authentication and Authorization**: Supports TLS-based transport link authentication and encrypted communication, as well as request identity-based permission verification, helping to build a zero-trust distributed microservice system.