What is Functions as a Service (FaaS)?
서버리스 컴퓨팅
What is the Functions as a Service (FaaS) Model?
Functions as a Service or FaaS is a serverless computing execution model that allows developers to easily deploy and execute applications without any need to manage the servers. In summary, with FaaS, you write the code while the cloud provider automatically handles server deployment, resource allocation, and environment management.
How Does FaaS Work?
In the FaaS model, developers write code in the form of functions, which are small, independent chunks designed to perform a single operation. These functions are initiated by events, for instance, HTTP requests, database changes, or a file upload event. When an event occurs, the cloud provider immediately allocates the resources needed for the function and releases them after the function’s event is done. This computing model allows event-driven, serverless deployment, which means charging per function execution.
잘 알려진 FaaS 제공업체로는 Amazon AWS Lambda, Microsoft Azure Functions, Google Cloud Functions 등이 있습니다.
FaaS와 SaaS의 차이점은 무엇입니까?
What is the Main Benefit of FaaS?
FaaS is a type of serverless computing where developers specifically are concerned with writing code and may have very little control over the servers. It allows adjusting the scale of activity and is based on an automatic mechanism of charging for use as a function of workload in an application.
What are the Disadvantages of FaaS?
Despite the benefits that come with FaaS, it’s critical to discuss some of the disadvantages.
- Vendor Lock-In: There may be variations between how FaaS is implemented between different cloud suppliers, which might create difficulties in moving your application.
- Cold Starts: The initial commencement time of dormant functions can be prolonged, leading to feedback delay as far as the individuals are concerned.
- Debugging and Monitoring: A distributed serverless application can be more complex to debug and monitor than a monolithic application.
- 상태 비저장: 함수 실행에 걸쳐 상태를 보존하는 것은 매우 복잡하며, 애플리케이션을 설계할 때 추가적인 노력이 필요합니다.
이러한 단점에도 불구하고 FaaS는 특히 이벤트 기반 및 클라이언트 중심 프레임워크에서 첨단 기술, 확장성, 비용 효율적인 애플리케이션을 구축할 때 널리 사용됩니다.
결론
FaaS는 개발자가 서버를 구매하지 않고도 애플리케이션을 구축하고 배포할 수 있는 서버리스 아키텍처의 확장입니다. FaaS는 자동 확장, 개발 주기, 리소스 기반 비용 활용을 위한 인프라를 숨깁니다. 이벤트 기반 및 확장 가능한 클라우드 솔루션을 개발하는 데 FaaS를 배포할 수 있지만 모든 유형의 애플리케이션에 적합한 것은 아닙니다.