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This article mainly explains "what are the characteristics and advantages of Serverless architecture". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn what are the characteristics and advantages of Serverless architecture.

The Serverless architecture is widely welcomed mainly because it has the following characteristics:

(1) No management services are required: no servers need to be provided or maintained, and no software or runtime needs to be installed.

(2) flexible scaling: the expansion and contraction of an application can be done automatically or adjust its capacity by adjusting its resource usage, rather than by increasing or decreasing the number of servers.

(3) High availability: serverless applications have built-in high availability and fault tolerance. Regardless of high availability, services running applications provide high availability by default.

(4) No idle loss: there is no need to reserve capacity for services such as computing and storage. If the code is not running, there is no charge.

Building serverless applications means that developers can focus on product code without having to manage and operate cloud or local servers or runtimes. Therefore, for enterprises, the application of Serverless architecture has obvious advantages:

(1) reduce the start-up cost and operating cost of the company.

In general, startups need to prepare for starting web services: version management servers, continuous integration servers, test servers, application version management repositories, database servers, and other IT infrastructure. With cloud services, startups do not need to build their own servers, so they will have more time to develop business functions. The biggest difference between the serverless calculated by the function and the CVM is that the CVM needs to run all the time, such as how much the monthly fee or annual fee is to rent, but the serverless is billed on demand. If a request arrives, the function will be run only, otherwise, there is no need for money.

(2) reduce the development cost and go online quickly.

Serverless will provide a series of supporting services, and will provide a series of function calculation templates, we only need to write our configuration, then this series of things can automatically and efficiently complete the task. Serverless also has a built-in automatic deployment feature. Every time we finish writing the business code, we just need to run it, which makes it easy to get online quickly. For example, in the calculation of the AWS Lambda function, the function is usually ready to be called within a few seconds after upload.

(3) the system is more secure.

It's not easy to keep the server running all the time, and you need to consider different types of hackers' attacks, but with serverless, we don't need to think about these problems, third-party vendors will help me solve these problems.

(4) be able to adapt to micro-service architecture and have strong scalability.

For traditional applications, the way to deal with more requests is to deploy more instances. However, it is often too late. For FaaS, we do not need to do this, FaaS will automatically extend. It can start as many instance copies as needed without lengthy deployment and configuration delays.

At this point, I believe you have a deeper understanding of "what are the characteristics and advantages of Serverless architecture". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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