Caching method and device and computer storage medium

Abstract

The invention discloses a caching method and device and a computer storage medium, and relates to the technical field of computers. According to the invention, the URL of each cache file is stored inthe URL tree; characters are stored in all nodes in the URL tree, the number of the characters is uncertain, the first characters of all the nodes in the same layer are different, the characters fromthe root node to all the leaf nodes or middle nodes can form a complete URL or domain name, and cache information of a cache file is stored in a node corresponding to the last character of the URL. The storage structure of the URL tree is convenient to find and manage, and when a file refreshing request exists, the corresponding cache information can be simply and quickly found according to the corresponding URL or domain name so as to refresh the file. In addition, the storage space can be saved through the storage structure of the URL tree.

Description

technical field [0001] The present invention relates to the technical field of computers, in particular to a caching method, device and computer storage medium. Background technique [0002] The cache server is an edge server of a CDN (Content Delivery Network, content distribution network). The cached content is stored on the local hard disk. In order to improve the concurrent access speed of massive cached content, multiple hard disks are generally provided for distributed storage. The content of the page corresponding to a URL (Uniform Resource Locator, Uniform Resource Locator) is cached as a file, and the cache file storage directory and file name are encrypted. The cache server distributes the cache files to different hard disks based on the hash algorithm calculated by the URL. Even the URLs under the same domain name directory may not necessarily be stored on the same hard disk. [0003] For the refresh of a single URL, after the cache server receives the refresh r...

AI Technical Summary

Problems solved by technology

But for the overall refresh of a directory, the processing effect of the cache server is very complicated, because the file name is encrypted, so it cannot be found by traversing the hard disk; because the URL storage locations in the same directory are distributed, so It is not possible to find all the URL storage locations in the directory by the directory name; it is also unknown which URLs are stored locally in a directory, so the method of calculating the location of cache files one by one according to the URL and then deleting them is not feasible

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