alibaba/Sentinel

Sentinel is a comprehensive traffic control and system protection framework for Java applications. It provides adapters for a wide range of frameworks, including Spring, Quarkus, and various RPC and HTTP clients, enabling flow control, degradation, and system load protection. The system supports distributed cluster mode for centralized rule management and offers dynamic rule updates via multiple data sources like Nacos, Redis, and Consul.

This period focused on introducing cluster-based flow control and concurrency limiting, establishing the core abstractions and Netty-based transport for distributed rate limiting. Simultaneously, the project expanded its integration capabilities by adding the @SentinelResource annotation for method-level protection and supporting various frameworks like Dubbo, gRPC, and Spring. The work also included significant internal refactoring, such as the SPI-based slot chain builder and data source interfaces, to improve extensibility and performance.

84 changes

This period focused on expanding Sentinel's integration capabilities for modern web frameworks and distributed systems. Significant additions include adapters for Spring WebFlux, Spring Cloud Gateway, Zuul, and Apache Dubbo, alongside new cluster mode management features in the dashboard. The release also introduced extensibility hooks for custom metrics and support for dynamic rule sources like Consul and etcd.

39 changes

This period focused on expanding Sentinel's integration capabilities by adding adapters for a wide range of frameworks, including Spring MVC, Quarkus, and various HTTP/RPC clients. The work also introduced asynchronous logging support and new flow control strategies, broadening the library's applicability across different Java EE and cloud-native environments.

31 changes

alibaba/Sentinel was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.