Developers, what is the microservice architecture?

🧑‍ author ： Sophomore computer student
Home page ： Focus on learning more technologies
The key ： Microservices software development framework Concept

Hello everyone , What we share today is the architecture of the enterprise , Microservice architecture , After reading this article , I believe you will have a much clearer concept of microservice , I am a little weeks , If you think the article is well written , Remember that Sanlian supports poor bloggers

Monomer architecture

Let's talk about what a microservice architecture is , Too hard to avoid , Any new technology is born more or less for a reason , So before we talk about the microservice Architecture , I think we should start with the concept of single architecture and its advantages and disadvantages .

Speaking of monomer Architecture , My most contact is MVC framework , The advantage is that the learning cost is low , Quick start , test 、 Deploy 、 Operation and maintenance are also more convenient , Even one person can complete the development and deployment of a small website .

With MVC Architecture, for example , Business is usually done by deploying a （ Circle the point ）WAR Package to Tomcat The server , start-up Tomcat Listening to a port can provide external services , Early in the business scale is not big 、 When the team is small , Monomer architecture is a good choice .

However, with the continuous expansion of business scale , The number of team members is increasing , Some problems will begin to appear in the single architecture . For example, the cost of teamwork becomes higher , Once the business goes wrong , Almost all relevant developers are involved in solving , inefficiency , The high cost , The availability of the system becomes poor , Because all businesses are packaged and deployed together , Once there is a problem with the code or resources involved in a function , It will affect the whole WAR Features deployed in the package , Is very serious . Inefficient deployment , There are more and more single application codes , Dependence is also increasing , The time for application deployment test is enough for me to fight against the wind . Business growth , The service will take longer to start , The online speed is a headache ……

therefore , There is an urgent need for a new architecture that can decouple different modules of the application , Reduce development, deployment and maintenance costs , The idea of service came into being , Microservices , It can greatly improve the efficiency of application delivery ！

As a service

In short , Servitization refers to the traditional single application JAR Package dependency generates local method calls , Transform to pass HTTP Of REST API Remote interface call .

I can see you , Through servitization , It can improve the expansion of monomer application , The system is highly coupled , Low efficiency of cooperation and so on .

Microservice architecture

Thanks to Docker Represented by the maturity of containerization technology and DevOps The rise of culture , The idea of service further evolved into today's well-known microservice architecture .

DevOps It's a kind of emphasis “ Software developer （Dev）” and “IT Operation and maintenance technicians （Ops）” Communication and cooperation between cultures 、 Sports or practices , Through automation “ Software delivery ” and “ Architectural change ” The process of , To make the build 、 test 、 Distributing software can be faster 、 Frequent and reliable .

What are the characteristics of microservices ？

• Service splitting is more granular , Micro service can be said to be a finer dimension of servitization , Down to a submodule , Each service usually focuses on a particular business 、 Small amount of code required , Low complexity 、 Easy to maintain
• Service independent maintenance , Each microservice can be developed by a small team or even an individual 、 test 、 Release and operations , And responsible for the entire life cycle
• Team size , Under microservices, each service is developed separately , Deployment and maintenance . Each service starts from design , The team from development to maintenance is small , Team management is easy , The cost is small
• Data storage mode , Different microservices can use different data storage methods , For example, some use mysql, Some use redis……
• Development mode , In microservices , Different modules can be developed using different technologies or languages , The development mode is more flexible
• As long as there is any modification to the application with single architecture , You need to redeploy the entire application to take effect , Microservice perfectly solves this problem . In the micro Service Architecture , After a micro service is modified , Just redeploy the service , Without having to redeploy the entire application
• Microservices can work with containers （Docker） In combination with , Implement fast iterations 、 Fast build 、 Rapid deployment
• Microservices have good scalability , As the business grows , The volume and code volume of microservices will increase dramatically , At this point, we can split the microservice again according to the business ; besides , When the number of users and concurrency increases , We can also deploy microservices in clusters , So as to increase the load capacity of the system

thus it can be seen , Microservice is used to publish and deploy services , And the maintenance of the service brings many benefits .

Microservice framework

Microservice architecture is a system architecture style and idea , In reality, I want to build a micro service system , We need the support of microservice framework . With the popularity of microservices , Many programming languages have launched their own microservice frameworks , such as ：

Java Microservice framework

Spring Cloud： be based on REST Services to build services , Help architects build a complete set of micro service technology ecological chain
Spark： first-class Java One of the microservice frameworks , The framework supports Java 8 and Kotlin Create an application for the microservice Architecture
Dubbo： Open source distributed service framework from Alibaba
……

Go Language microservice framework

Go There are few microservice frameworks in the language , More commonly used are GoMicro, It's a RPC frame , With load balancing 、 Service discovery 、 Synchronous communication 、 Asynchronous communication and message coding

Phyton Microservice framework

Phyton The microservice framework in mainly includes Flask、Falcon、Bottle、Nameko and CherryPy etc.

There are many languages , Each has its own microservice framework , Here is not a list , Bloggers are familiar with Spring Cloud

summary

Services evolve from single architecture applications to service-oriented split development and deployment , Later, with the continuous expansion of the scale of mobile Internet , agile development 、 Continuous delivery 、DevOps The development and practice of culture , And based on Docker The continuous maturity of containerization technology , Refine services , Microservice architecture is becoming popular , It has gradually become the future evolution direction of application architecture .

A brief summary , Microservice architecture is the fine-grained service splitting of complex and huge single applications , Each split service is assigned to a small team for development, operation and maintenance , After completion, they are separately packaged and deployed , Thus, the efficiency of application delivery and the difficulty of maintenance iteration are greatly improved , Therefore, it is gradually adopted by major Internet companies .

At the end

Read here , You must have a basic understanding of microservices , The author's ability is limited , If the article is wrong , Please also point out that , Last , I hope you can lay a good foundation , Feet on the ground , Come on boy , Don't forget that Sanlian supports poor bloggers , I am a little weeks , Looking forward to your attention .