What does service downgrade mean?
Today, I would like to talk to you about the meaning of service downgrade. Many people may not know much about it. In order to make you understand better, the editor has summarized the following contents for you. I hope you can gain something according to this article.
Service degradation is a strategic degradation of some services and pages according to the current business situation and traffic when the pressure on the server increases sharply, so as to release server resources to ensure the normal operation of core tasks.
Service degradation is a strategic degradation of some services and pages according to the current business situation and traffic when the pressure on the server increases sharply, so as to release server resources to ensure the normal operation of core tasks.
What is service degradation?
Service degradation is a low-priority treatment of less important services. To put it bluntly, it is to give up system resources to high-priority services as much as possible. Resources are limited, and requests are unlimited. If the service is not degraded during the peak period of concurrency, on the one hand, it will definitely affect the performance of the overall service, and if it is serious, it may lead to downtime and unavailability of some important services. Therefore, generally in the peak period, in order to ensure the availability of the core functions of the website, it is necessary to downgrade some services.
Means of service degradation
Denial of service
Judge the source of the application, reject the service request of the low priority application during the peak hour, and ensure the normal operation of the core application. You can also reject requests at random and return directly to the busy server to avoid flooding in too many requests at the same time, which is especially used in e-commerce seconds.
Shut down the service
Since it is the rush hour, you can shut down some unpopular or marginal unimportant services and give up resources to core services. For example, Taobao shuts down some services that have nothing to do with the core business of issuing orders, such as evaluation and confirmation of receipt, every year on Singles Day, to ensure that users place orders and pay normally. Of course, they will certainly use denial of service. During the peak period at 0: 00, many users basically see that the server is busy.
After reading the above, do you have any further understanding of what service downgrade means? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.
