Content caching method and content caching system

Abstract

The invention provides a content caching method. The content caching method is characterized in that a priority of to-be-cached content can be acquired; the caching medium corresponding to the to-be-cached content can be determined based on the acquired priority and according to the mapping model of the priority of the to-be-cached content and the grade of the caching medium; according to the mapping model, the priority of the to-be-cached content is in a positive correlation with the grade of the caching medium, and the therefore the to-be-cached content having the highest priority is corresponding to the caching medium having the highest speed grade, and the to-be-cached content having the lowest priority is corresponding to the caching medium having the lowest speed grade. The invention also discloses a corresponding system. According to the invention, after the priority of the to-be-cached content is determined, the caching of the to-be-cached content can be carried out by adopting the mapping model representing the positive correlation between the priority of the to-be-cached content and the grade of the caching medium and by using the characteristics of different caching mediums to the greatest extent, and therefore the caching costs can be reduced, and the access speed can be accelerated.

Description

technical field [0001] The present disclosure relates to the field of caching, and in particular to a content caching method and system. Background technique [0002] Cache (Cache) is a technology that exchanges space for time. It exists in many places in the computer. It is used to save commonly used data in some slow devices in fast devices, and directly fetch data from fast devices when fetching data. CDN (Content Delivery Network) caches content in different locations and directs user requests to the nearest cache server to obtain content through load balancing and other technologies, which can improve the response speed of users accessing websites. [0003] In the cache server, that is, the cache node, for frequently accessed data, the existing technology usually caches it in the memory with the fastest read and write speed. The data is cached to disk only when the data is stored. If the data cached first takes up a lot of memory but is accessed less frequently than t...

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Problems solved by technology

[0004] Embodiments of the present disclosure provide a content caching method and system to solve the problem in the prior art that the CDN caches the content in the memory after distributing the content does not always require the fastest reading or the most access, or caches the content in the memory. The content volume is too large, so that more frequently accessed content cannot be cached in the memory, so the problem of not making good use of the characteristics of various cache media to cache content is realized. The content is cached by grading the content and corresponding to the performance of the cache medium The way

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