Method for enhancing grid data access performance

A grid data and access performance technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as increased delay, complex node organization, search security, version, and consumption of network bandwidth, etc. performance, improving availability and reliability, and balancing service period loads

Inactive Publication Date: 2008-11-19
NANJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

This system avoids many problems of the C/S structure, but at the cost of consuming more network bandwidth a

Method used

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  • Method for enhancing grid data access performance
  • Method for enhancing grid data access performance
  • Method for enhancing grid data access performance

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0049] The specific implementation method is divided into two parts, one is the establishment process of G-GridFtp; the other is the process of user's data access to G-GridFtp.

[0050] 1. The establishment process of G-GridFtp

[0051] The main implementation process:

[0052] Step1: Connect a node to Group Server A according to the area, and register the data resources it owns to Group Server.

[0053] Step2: When Group Server A starts up in G-GridFtp for the first time, it is in the "down" state because it does not exchange information with any other Group Server. Send Hello messages externally through the multicast address.

[0054] Step3: Other Group Servers in G-GridFtp receive the Hello packet from Group Server A. And add Group Server A to their neighbor list, and start to establish the adjacency relationship.

[0055] Step4: All Group Servers receiving the Hello data packet send a unicast reply Hello data packet to Group Server A, which contains their own correspon...

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Abstract

Disclosed is a method which improves the grid data access performance; the method is a novel grid data transmission system and integrates the combination of the C/S technology and the P2P technology to solve the problem of improving the data access performance under the grid environment. A plurality of Group Servers are in the G-GridFtp environment; how to ensure that all the Group servers based on the peer-to-peer relation can maintain the same directory database to describe the data information of the G-GridFtp for the users; the method proposes the DGS (Designated Group Server ) concept and the BDGS (Backup Designated Group Server) concept; when the node updating occurs in the G-GridFtp, the DGS sends the received directory database update message to other Group Servers in the G-GridFtp; besides, in a certain time period, if no node updating occurs in the G-GridFtp, the DGS still broadcasts the special directory database information to declare the existence of the DGS.

Description

technical field [0001] The invention is a method for improving grid data access performance, which is mainly used to solve the dynamic self-adaptive adjustment of resource allocation in the grid and provide users with high-performance and high-reliability data transmission services, belonging to the technical field of grid computing software. Background technique [0002] In the ever-changing development of computer and communication equipment, grid, a new infrastructure, has brought a new piece of network prosperity. The grid tries to connect the resources on the WAN, hoping to establish a higher level of sharing based on the existing technology, and provide the sharing of computing resources, storage resources and other resources. Data transmission and management not only occupy an unshakable position in the data grid that processes massive data, but also play a vital role in computing grid, service grid and other fields. The efficient, reliable, and convenient movement an...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06G06F17/30
Inventor 王汝传张羽任勋益季一木邓松易侃蒋凌云杨明慧付雄张琳
Owner NANJING UNIV OF POSTS & TELECOMM
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