Programming VIP

Correct handling method after registry downtime Microservice is a major trend at present. The registry is not only the most basic component of microservice, but also the most core component. It provides the client with a list of all callable services. Because of this, the availability of the registry is highly required in the microservice ...

1. Introduction Spring Cloud gateway is a new project of Spring Cloud. The project is a gateway developed based on Spring 5.0, Spring Boot 2.0 and Project Reactor. It aims to provide a simple and effective unified API routing management method for microservice architecture. As a gateway in the Spring Cloud ecosystem, the goal of Spring Cloud ...

preface For an interface provided by the back end, it is essential to have a unified response format to facilitate parameter verification and unified exception handling. Today, we integrate these three basic functions into the project to make the project closer to the actual development scenario. Unified response In project development, gene ...

Through the previous study, we know that Eureka client actively reports its communication address to Eureka server. This process is completed by calling the service registration interface. Now Eureka server can get the communication addresses of all Eureka clients, but how does Eureka client get the communication addresses of other Eureka clie ...

Code address of this series: https://github.com/JoJoTec/spring-cloud-parent In the previous section, we implemented the Retry of FeignClient resilience4j. Careful readers may ask why the circuit breaker and thread current limiting are not added together in the implementation here: @Bean public FeignDecorators.Builder defaultBuilder( ...

Use feignClient to upload and download files, and compatible with data transmission The communication between microservices can use feign interface to communicate and transfer data content, but if there is file transfer between services, it will be very clumsy to use httpClient to transfer.feign interface actually transmits data through http r ...

11 zuul routing gateway After skipping ~ a brain map will be sent, and zuul gateway can be seen on the brain map 12 Gateway next generation gateway 12.1 introduction First, create a new module cloud gateway gateway 9527 pom <dependencies> <!--gateway--> <dependency> <groupId>org.sp ...

1, JVM monitoring Installing node based on docker_ exporter+prometheus+grafana Download Image package: docker pull prom/node_exporter docker pull prom/prometheus docker pull grafana/grafana docker pull timonwong/prometheus-webhook-dingtalk 1. Start node exporter docker run -d --name node_exporter -p 9100:9100 \ -v "/proc:/host/proc:ro ...

catalogue 4.1.1 basic architecture and concept of Alibaba Nacos Alibaba Nacos basic architecture Service, configuration service, name service Interpretation of Alibaba Nacos concept Service registry: it is the database of services, instances and metadata; The service registry may call the health check API of the service instance to ve ...

Today, we will introduce a component of service invocation: OpenFeign, which is also a cruel role beyond its predecessors (Ribbon and Feign). The article contents are as follows: 2. What is Feign? Feign is also a tough role. Feign aims to make Java Http clients easier. Feign integrates Ribbon and RestTemplate to realize load balancing and ...