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This article introduces the relevant knowledge of "what are the basic knowledge points of Spring Cloud Alibaba". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Basic knowledge

Cloud native technology enables organizations to build and run scalable applications in new dynamic environments such as public, private, and hybrid clouds. Representative technologies of cloud natives include containers, service grids, microservices, immutable infrastructure, and declarative API. These technologies can build loosely coupled systems with good fault tolerance, easy to manage and easy to observe.

Distributed configuration

Nacos provides key/value storage for storing configurations and other metadata, providing server-side and client-side support for externalized configurations in distributed systems. With Spring Cloud Alibaba Nacos Config, you can centrally manage the external attribute configuration of your Spring Cloud application in Nacos Server.

Service registration and discovery

Service registration and discovery is one of the most critical components in micro-service architecture. It is very difficult to try to manually configure the service list of all service providers for each client, and it is not conducive to the dynamic expansion and scaling of the service.

Distributed service invocation

Spring Cloud Alibaba continues the characteristics of Spring Cloud distributed service invocation. In addition, Spring Cloud Alibaba introduces Dubbo Spring Cloud and expands the ability of distributed service invocation, which not only makes Apache Dubbo and OpenFeign coexist, but also allows Spring Cloud standard calls to be transmitted through communication protocols supported by Dubbo.

Service circuit breaker and current limit

There are often some unstable situations in our production environment, such as "dark horse" hot goods breaking through the cache, DB being destroyed, crowding out normal traffic, and so on. How to prevent the impact of excessive traffic or service instability? At this time, we need to come up with the magic weapon of micro-service stability-high available flow protection, of which the important means are flow control and circuit breaker degradation, which are important links to ensure the stability of micro-services.

Distributed message (event) driver

Event-driven architecture (Event-driven architecture, referred to as EDA) is a set of programming models in the field of software design. The meaning of this model is that all operations are done through the sending / receiving of events. For example, for example, the creation of an order in traditional software design, the server exposes the action of creating the order through the interface, and then the client accesses to create the order.

Distributed transaction

Distributed consistency is one of the key problems that need to be solved in distributed systems. according to the questionnaire in the past year, distributed transactions are the biggest pain point for users in the practice of micro-services. At present, there is a lack of distributed transaction components that have been verified by flood traffic in the market. Seata has been incubated for a long time in Ali economy, carrying double 11 flood traffic. Practice has proved that Seata is an excellent component to solve the consistency of distributed data.

This is the end of the introduction to Spring Cloud Alibaba. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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