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Method and device for updating cache resources

A resource and cache technology, applied in the field of communication, can solve the problem of low update efficiency of cache resources, and achieve the effect of improving update efficiency and narrowing the scope.

Active Publication Date: 2017-05-10
HANGZHOU DPTECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for updating cache resources to solve the problem of low update efficiency of existing cache resources

Method used

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  • Method and device for updating cache resources
  • Method and device for updating cache resources

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are described below in conjunction with the accompanying drawings The program is described in further detail.

[0021] see figure 1 , is a schematic diagram of an application scenario of a method for updating a cache resource according to an embodiment of the present invention.

[0022] Such as figure 1 As shown, the application scenario may include: N client terminals set up in a local area network, a CDN system, and a resource website in the Internet. Wherein, each client can request resources from the resource website through the LAN exit. The CDN system is deployed between the above-mentioned local area network and the resou...

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Abstract

The invention provides a method and a device for updating cache resources. The method, which is applied to a cache server of a content delivery network CDN, comprises the following steps: receiving a resource request message from a user side, wherein the resource request message contains target resource information of a requested target resource; looking for the target resource information in a pre-created hit table, wherein the hit table is used to save the corresponding relationship between the resource information of locally downloaded cache resources and the aging time; if the target resource information is not found in the hit table and the target resource is locally cached, checking whether the target resource needs to be updated; and if the target resource needs to be updated, updating the target resource, and adding the target resource information and the aging time set for the target resource information to the hit table. According to the embodiments of the invention, by setting the aging time for the cache resource information and introducing the aging time to the hit table, the range of cache resource update check is narrowed, and the update efficiency is improved.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for checking cache resource updates. Background technique [0002] CDN (Content Delivery Network, Content Distribution Network) is a layer of intelligent virtual network built on the basis of the existing Internet. By widely deploying various cache servers and using global load technology, user requests can be redirected to the cache closest to the user. On the server, to solve the crowded situation of the Internet network and improve the response speed of users visiting the website. Since resources on the cache server may have resource expiration issues, it is necessary to update and check the cached resources in a timely manner. [0003] In the prior art, the cache server periodically checks each cached resource, compares the cached resource with the latest resource of the source website to determine whether the cached resource is exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/5682
Inventor 曾生锋王树太吴庆周守亚
Owner HANGZHOU DPTECH TECH
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