Why do you need cloud-native architecture?

There are two main driving factors for the evolution of computer software technology architecture, one is the upgrade of the underlying hardware, and the other is the development demands of the top-level business. For example, with the maturity of the x86 hardware system, many applications no longer use expensive and bloated large and medium-sized computers to complete, but choose the cheaper x86-based hardware system, which also gave birth to CORBA, EJB, Various distributed architectures including RPC; later, due to the rapid development of Internet business, people found that the traditional IOE architecture can no longer meet the concurrency requirements of massive business scale, so Internet architecture systems such as Alibaba Dubbo & RocketMQ and Spring Cloud were born.

Fifteen years have passed since cloud computing has been industrialized to the present. However, the way a large number of applications use the cloud is still stagnant in the traditional IDC era: virtual machines replace the original physical machines; files are used to save application data, and a large number of built-in third-party Technology components, applications that have not undergone architectural transformation (such as microservice transformation), and traditional application packaging and publishing methods. There is no absolute right or wrong about how to use these technologies, but in the cloud era, the powerful capabilities of the cloud cannot be fully utilized, the higher availability and scalability cannot be obtained from the cloud technology , and the release and O&M cannot be improved by using the cloud. efficiency, is a very regrettable thing.

Looking back at the development trend of the business world in recent years, the emergence of digital transformation has made more and more businesses evolve into digital businesses. Digitalization has brought more stringent requirements on business channels, competition landscape, user experience and many other aspects. This requires The technology has a faster iteration speed, the business launch speed has been increased from weekly to hourly, and the monthly online business volume has increased from "tens/month" to "hundreds/day". A large number of digital businesses have restructured the business pipeline of enterprises, and enterprises require that these businesses cannot have unacceptable business interruptions, otherwise it will have a devastating impact on customer experience and revenue.

For the CIO or IT director of the enterprise, there are many internal IT constructions in the "chimney" model, and each department and even each application is relatively independent. How to manage and allocate resources has become a difficult problem. Everyone builds up independently based on the bottom-level IDC facilities, and all need to allocate hardware resources separately, which results in a large number of resources being occupied and difficult to share. However, after going to the cloud, because cloud vendors provide unified IaaS capabilities and cloud services, the reuse of the enterprise IaaS layer has been greatly improved. CIOs or IT managers naturally think that the systems above the IaaS layer also need to be unified, so that resources and products can be used. It is continuously reused, which can further reduce the operating cost of the enterprise.

All these questions point to a common point, that is, the era of cloud requires a new technical architecture to help enterprise applications make better use of the advantages of cloud computing , fully release the technical dividends of cloud computing , and make business more agile and cost-effective. At the same time, the scalability is more flexible, and these are exactly the technical points that the cloud native architecture focuses on.