Resource storage indexing device and method in CDN system

Abstract

The invention provides a resource storage indexing device and method in a CDN system. The resource storage indexing device comprises a name extraction unit, a name judgement unit, a key value generating unit and an index setup unit, wherein the name extraction unit is used for acquiring and extracting file names in URL (uniform resource locator), the name judgment unit is used for judging whether complexity of the file names is up to the preset complexity and using the file names as generation factors if yes and using the URL as generation factors if not, the key value generating unit is used for generating key values according to the generation factors by the preset algorithm, and the index setup unit is used for creating a storage position index table of the key values and the corresponding resources in a cache library. Accordingly, an index of one resource high in correspondence to the key values can be set up in the CDN system, index services can be provided for updating of resource requests and resources, and cache redundancy in the CDN system and mistaken hit rate of files can be reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an indexing device and method for resource storage in a CDN system. Background technique [0002] With the popularization and development of the Internet and network applications, the emergence of a large number of websites and the consequent huge amount of visits make network services overwhelmed, and content distribution network (CDN) came into being. CDN is a new type of network content service system that provides content distribution and services based on content access and application efficiency requirements, quality requirements, content order, and customer bandwidth restrictions. It represents a network-based high-quality, high-efficiency , A network application service model with a clear network order. [0003] When the CDN is facing LAN users, the CDN system will be deployed at the exit of the LAN network in a bypass. When a user requests a certain resource, the...

AI Technical Summary

Problems solved by technology

For example, website A and website B provide the download of a certain resource at the same time, and the key values ​​corresponding to the different URLs of the resources obtained by users on websites A and B are also different, but in fact the resources corresponding to the two key values ​​are the same, so the index appears The resources corresponding to multiple key values ​​in the table will be repeated, resulting in large-scale redundant resources stored in the cache module

[0006] It can be seen that because the existing technology cannot establish an index with a high degree of correspondence between resources and key values ​​in the CDN system, problems such as large-scale cache redundancy and file mishits appear in the CDN system

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