When e-commerce platforms encounter large-scale promotional activities such as "Double 11", "Double 12", and "618", the number of business visits increases rapidly in a short period of time, and…

When e-commerce platforms encounter large-scale promotional activities such as "Double 11", "Double 12", and "618", the number of business visits increases rapidly in a short period of time, and only lasts for a few days or even hours. In this case, which two services do we usually use to save IT costs to the maximum extent while meeting business needs?