1. Why use Hystrix When calling between multiple microservices, assume that microservice A calls microservice B and microservice C, and microservice B and microservice C are calling other microservices. This is the so-called “fan-out”. If the call response time of a certain microservice on the fan-out link is too long or is unavailable, the call […]
Tag: hystrix
Use Hystrix to implement request merging and reduce server concurrency pressure
1. Introduce Hystrix <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-hystrix</artifactId> </dependency> 2. Enable Hystrix function on the startup class @EnableHystrix 3. Request to merge the implementation code import com.bzcst.bop.oms.orm.model.po.Product; import com.bzcst.bop.oms.orm.service.ProductService; import com.netflix.hystrix.contrib.javanica.annotation.HystrixCollapser; import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand; import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty; import com.netflix.hystrix.contrib.javanica.conf.HystrixPropertiesManager; import lombok.extern.slf4j.Slf4j; import org.springframework.stereotype.Service; import javax.annotation.Resource; import java.util.List; import java.util.concurrent.Future; /** * @author Xiang Zhenhua * @date 2023/10/26 14:37 */ […]
Spring Cloud service circuit breaker and downgrade (Hystrix)
Table of Contents Hystrix concept effect Service downgrade Introduction scenes to be used interface downgrade Server service downgrade 1. Add dependencies 2. Define the interface 3. Implement the interface 4.Usage of Controller class 5. Add comments to the startup class 6. Browser access Client service downgrade 1. Add dependencies 2. Add configuration in application.yml 3. […]
[Zero to One Series] Microservice Hystrix fuse integration
Previous review: [Zero to One Series] springcloud microservices integrate nacos to form a distributed system 1. hystrix dependency package First, introduce hystrix-related dependency packages. The version should correspond to the one in the project. I use the default version directly here. <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-hystrix</artifactId> </dependency> Then, the microservices demonstrated are still taking the two sub-modules […]
SpringCloud-Hystrix
1. Introduction (1) Avoid the failure of a single service to cause the entire application to collapse. (2) Service degradation: When the service times out, the service is abnormal, or the service is down, the defined method is executed. (Do something else) (3) Service circuit breaker: When the circuit breaker condition is reached, the service […]
Cloud native microservice Spring Cloud Hystrix downgrade and circuit breaker practical application
Directory of series articles Chapter 1 Application of Java Thread Pool Technology Chapter 2 Application of CountDownLatch and Semaphone Chapter 3 Introduction to Spring Cloud Chapter 4 Spring Cloud Netflix-Eureka Chapter 5 Spring Cloud Netflix Ribbon Chapter 6 OpenFeign of Spring Cloud Chapter 7 GateWay of Spring Cloud Chapter 8 Hystrix of Spring Cloud Netflix […]
Can Dubbo replace Feign, Hystrix, Sentinel, Ribbon?
Article directory 1. Concept 2. Function introduction 1. @Service 2.@Reference 3. @Method 4.@Argument 3. Analysis 4. How to achieve it? 1. Circuit Breaker XML configuration method Annotation method 2. Downgrade (Fallback) XML configuration method Annotation method 3. Rate Limiting XML configuration method Annotation method 4. Load Balancing XML configuration method Annotation method 5. Expansion 1. […]
Hystrix fault-tolerant components
Hystrix fault-tolerant component Introduction to Hystrix Hystrix, which means porcupine in English, is covered with thorns and looks untouchable. It is a protective mechanism. It is a fault-tolerant component, and Hystrix is also a component of Netflix. So what does Hystix do? What exactly should be protected? Hystix is a delay and fault-tolerance library open […]
Understanding of SringCloud-Netflix-OpenFeign/Hystrix/Zuul components
1. Client load balancing—OpenFeign 1.What is Feign? Feign is a declarative http client. Feign can be used to implement declarative REST calls. Its purpose is to make Web Service calls simpler. Feign integrates Ribbon and SpringMvc annotations, which makes Feign’s client interface look like a Controller. Feign provides a template for HTTP requests. By writing […]
[OpenFeign] OpenFeign combines Hystrix and Sentinel to implement circuit breaker downgrade
OpenFeign can be used in conjunction with Hystrix and Sentinel to implement downgrades and circuit breakers. OpenFeign combined with Hystrix To use OpenFeign, you need to introduce OpenFeign dependencies: <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> The dependencies introduced by spring-cloud-starter-openfeign are as follows: [INFO] + – org.springframework.cloud:spring-cloud-starter-openfeign:jar:2.2.6.RELEASE:compile [INFO] | + – org.springframework.cloud:spring-cloud-openfeign-core:jar:2.2.6.RELEASE:compile [INFO] | | + – […]