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Method, device and system for updating data

A technology for updating data and data, applied in the field of communication, can solve problems such as slow request response

Inactive Publication Date: 2011-06-29
CHINACACHE INT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, when the content saved on the Cache server expires, the user terminal must wait until the Cache server completes the verification at the origin server before receiving the data returned by the Cache server, resulting in slow request response

Method used

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  • Method, device and system for updating data
  • Method, device and system for updating data
  • Method, device and system for updating data

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Embodiment Construction

[0023] The main realization principles, specific implementation modes and corresponding beneficial effects of the technical solutions of the embodiments of the present invention will be described in detail below in conjunction with each accompanying drawing.

[0024] In order to solve the problems existing in the prior art, the embodiment of the present invention provides a method for updating data, such as figure 1 shown, including the following steps:

[0025] Step 101, after receiving the data acquisition request sent by the user terminal, return the stored data to the user terminal;

[0026] Specifically, when the user terminal needs to acquire certain data, it sends a data acquisition request to the cache server. After receiving the data acquisition request, the cache server detects whether the data has been stored locally, and if so, returns the data to the user terminal; otherwise, sends the data acquisition request to the origin server.

[0027] Step 102: Send a data...

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Abstract

The invention relates to the technical field of communication, particularly relates to a method, a device and a system for updating data. The method comprises the following steps: returning the stored data to a user terminal after receiving a data acquisition request sent by the user terminal; sending a data checking request of the data to a source station server; and receiving and reserving updated data returned by the source station server when the data in the source station server is updated. By adopting the method, the device and the system for updating data, which are provided by the embodiment of the invention, after the data acquisition request of the user terminal is received, the data is returned to the user terminal at first, and then whether the data is updated or not is checked out, accordingly, the user terminal can promptly and quickly acquire the data, and the data is checked out as soon as the user terminal sends the acquisition request without waiting for the data expiration period. Therefore, the user terminal can promptly acquire the data, and the correctness of the local storage data is guaranteed.

Description

technical field [0001] The present invention relates to the technology in the field of communication, in particular to a method, device and system for updating data. Background technique [0002] In the field of CDN (Content Delivery Network, content distribution network), the access of user terminals is directed to the cache server, so that user terminals can obtain the required content nearby, avoiding the penetration of various routes to the origin server to obtain content, thus Reduce access time. In the prior art, in the initial situation, the user terminal accesses the Cache server, and the Cache server does not have the content of the source station server. At this time, the data flow is: the user terminal initiates an HTTP (HyperTextTransfer Protocol, hypertext transfer protocol) request to the Cache server; When the Cache server detects that the requested content is not stored, it initiates the same HTTP request to the origin server; the origin server returns an HT...

Claims

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Application Information

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IPC IPC(8): H04L29/08
Inventor 栗伟斯文周东树田江波钟东黄勇
Owner CHINACACHE INT HLDG
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