Data downloading method, device and system for distributed platform

A distributed platform and data download technology, applied in the field of communication, can solve problems such as failure, low data download efficiency, and data download delay, and achieve the effect of improving download efficiency

Inactive Publication Date: 2015-04-29
PEKING UNIV FOUNDER GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because in the distributed platform, the computing power of each downloader is different, when there are many clients sending download requests, the existing data download method cannot guarantee that the server can reasonably allocate download tasks for each downloader, and data download delays are prone to occur And due to the overtime download failure, the efficiency of data download is low

Method used

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  • Data downloading method, device and system for distributed platform
  • Data downloading method, device and system for distributed platform
  • Data downloading method, device and system for distributed platform

Examples

Experimental program
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Embodiment Construction

[0030] figure 1 It is a flow chart of Embodiment 1 of the data download method of the distributed platform of the present invention, the method of this embodiment can be executed by the server, see figure 1 , the method of this embodiment includes:

[0031] Step 101: receiving a download request sent by the first client;

[0032] In this embodiment, the request or response message between the server and the client, and between the server and the downloader includes two parts, the protocol header and the protocol content. After the protocol header and the protocol content, there is a terminator, and the terminator uses Line feed (0x0D) and carriage return (0x0A) indicate that the content of the protocol includes multiple keywords and their corresponding values. A colon (0x3A) is used as a separator between keywords and values, and a terminator is after keywords and values. When the value corresponding to the keyword is a parameter, the equal sign (0x3D) is used as the separat...

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Abstract

The invention provides a data downloading method, device and system for a distributed platform, and relates to the technical field of communication. The method comprises the following steps: receiving a downloading request sent by a first client; selecting an idle downloader for sending a downloading instruction according to working state information of each downloader; receiving second response information returned by the selected downloader and analyzing out downloaded data from the second response information; sending the downloaded data to a client corresponding to loopback address information according to the loopback address information in the downloading request. According to the technical scheme, a server distributes a downloading task according to current working state information of the downloader, so that the downloading task is reasonably distributed for the downloader, the situation of downloading delay or timeout is reduced, and the downloading efficiency is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data download method, device and system for a distributed platform. Background technique [0002] In a distributed platform based on the client-server (Client-Server; CS) model, the communication between the server and the client and between the server and each downloader is generally carried out through the HTTP protocol. When the client needs to download data, it sends a download request to the server. The server randomly selects a downloader to perform the download task. The selected downloader performs data download and returns the downloaded data to the server, and then the server sends the downloaded data to the server that sends the download request. client. [0003] Because in the distributed platform, the computing power of each downloader is different, when there are many clients sending download requests, the existing data download method cannot guarantee tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/06H04L67/10
Inventor 阎磊梁肖于晓明杨建武
Owner PEKING UNIV FOUNDER GRP CO LTD
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