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Sentinel: Flow Control and Resilience for Microservices
Sentinel is a powerful flow control component designed for cloud-native microservices, enabling enhanced reliability, resilience, and monitoring capabilities for distributed systems. It helps prevent cascading failures and ensures system stability under high-concurrency scenarios.
Java
Added on 2025年5月11日22,714
Stars8,092
ForksJava
LanguageProject Introduction
Summary
Sentinel is an open-source flow control and service protection framework that provides a comprehensive set of features for building reliable and resilient microservices and distributed systems.
Problem Solved
Microservice architectures are prone to instability due to traffic bursts, dependency failures, and lack of unified control. Sentinel addresses these by providing a robust framework to manage traffic flow, isolate failures, and ensure system stability.
Core Features
Comprehensive Flow Control
Provides robust flow control capabilities, allowing QPS limitation, concurrency control, and adaptive system protection to prevent services from being overwhelmed by excessive traffic.
Real-time Monitoring & Alerting
Offers real-time monitoring dashboards and alerting functionalities, giving visibility into system health, traffic metrics, and rule effectiveness.
Tech Stack
Java
Spring Cloud
Dubbo
Rate Limiting
Circuit Breaking
Monitoring
Use Cases
Sentinel can be applied in various scenarios within microservice architectures to enhance system reliability and resilience, including:
Preventing Service Overload
Details
Protecting critical backend services from traffic surges initiated by frontend applications or other services, ensuring they remain responsive.
User Value
Ensures critical services remain available and stable even under unexpected traffic spikes.
Implementing Circuit Breaking
Details
Automatically degrading or failing fast on calls to unhealthy or overloaded downstream dependencies to prevent cascading failures throughout the system.
User Value
Stops failures from spreading across services, improving overall system fault tolerance.
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