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Cache file updating method, device thereof and system thereof

A technology for caching files and updating methods, applied in transmission systems, electrical components, etc., can solve problems such as incomplete cache updating, and achieve the effects of strengthening network data processing capabilities, improving flexibility and availability, and being easy to expand

Active Publication Date: 2015-08-26
SHANGHAI DNION INFORMATION & TECH
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  • Description
  • Claims
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Problems solved by technology

Therefore, the cache file update method in the prior art is likely to cause incomplete cache update

Method used

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  • Cache file updating method, device thereof and system thereof
  • Cache file updating method, device thereof and system thereof
  • Cache file updating method, device thereof and system thereof

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Embodiment Construction

[0034] When the cache file update method in the prior art is applied to update the cache file in a content publishing network with false source nodes and edge nodes, due to the influence of network delay and other factors, it is likely that the cache file update will not be complete. occur.

[0035] In order to solve the above-mentioned problems existing in the prior art, the technical solution adopted in the embodiment of the present invention can effectively avoid the occurrence of incomplete cache file update by issuing cache file update notifications in the order of false source nodes first and then edge nodes.

[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] figure 1 A flow chart of a method for updating a cache file in an embodiment of the present invention is shown. Suc...

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Abstract

The invention provides a cache file updating method, a device thereof and a system thereof. The method comprises a step of receiving a cache file update notification, and a step of issuing the cache file update notification to each node server according to the sequence of a pseudo-source node and then an edge node such that each node server updates a cache file. According to the above technical scheme, the cache file update notification is issued to each node server according to the sequence of the pseudo-source node and then the edge node such that each node server updates the cache file according to the sequence of the pseudo-source node and then the edge node, the condition that an old resource file is still obtained when data is requested from the pseudo-source node at the edge node can be effectively avoided, and thus each node server can more thoroughly update the cache file.

Description

technical field [0001] The present invention relates to the technical field of file updating, in particular to a cache file updating method, device and system. Background technique [0002] Content Delivery Network (CDN), by placing node servers throughout the network, builds a layer of intelligent virtual network on the basis of the existing Internet, and publishes the content of the website to the "edge" of the network closest to the user. Make it easy for users to get what they need. And these "edges", that is, cache servers, are used to cache the content of the origin site. [0003] After the cache server is introduced, the cache file needs to be returned to the source to verify whether it is expired. Due to the huge amount of visits to large portal websites and the large number of node servers, many edge nodes go to the source site to cache and update files at the same time, which will cause huge pressure on the source site. In order to solve the above problems, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
Inventor 高英杰顾庆荣
Owner SHANGHAI DNION INFORMATION & TECH
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