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Data index method for schoolyard grid data transmission service

A grid data and transmission service technology, applied in the field of computer networks, can solve the problems of restricting the cross-platform characteristics of grids, insufficient description of data information, frequent use, etc.

Inactive Publication Date: 2009-05-27
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The GridFTP service in the campus data transmission service has a large number and is frequently used. It has become an important platform for carrying campus culture. At present, there are two main problems in the data query of the existing campus GridFTP service: ① It is difficult to locate resource information: users cannot get the first Three-party tools for resource location
②Insufficient description of data information: it makes it more difficult to locate resources, and at the same time it is difficult to avoid unnecessary data redundancy
The root of these problems is that the MDS provided by Globus is a Web Service-based service, while GridFTP is a non-Web Service service, and the grid security architecture GSI (Grid Security Infrastructure) proposed by Globus currently only supports the Linux operating system, which greatly limits Grid cross-platform features

Method used

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  • Data index method for schoolyard grid data transmission service
  • Data index method for schoolyard grid data transmission service
  • Data index method for schoolyard grid data transmission service

Examples

Experimental program
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Embodiment Construction

[0056] The implementation steps of the data transmission index in the campus network under the grid computing platform:

[0057] (1) The establishment steps of the index mechanism

[0058] Step 1) All resources in the campus network must be registered in the Index Service in the MDS. The Index Service is built on the Aggregator Framework, and any aggregator source can be used to collect information. By default, resource attributes are aggregated from registered resources via QueryAggregatorSource. In addition, there are SubscriptionAggregatorSource and ExecutionAggregatorSource, both of which can be used to collect resources. The underlying implementation of resource registration is as follows:

[0059] Step 2) You can query the resources registered in the MDS, and for the convenience of the majority of users, you can query by keyword and fuzzy query;

[0060] Step 3) Monitor resources, mainly with the help of Ganglia. Ganglia monitoring software is mainly used to monitor s...

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Abstract

The invention discloses an index method for data in data transmission service in campus grid, which provides an index mechanism in campus GridFTP under network environment and is convenient for the discovery of resources and the inquiry of the data. A system structure under the mechanism comprises a data transmission log, a monitor and an index server. The key point comprises that the relation among a resource server, the index server and a GridFTP server is established. A data resource list acquired after MDS and ganglia are integrated is shown in figure 5, a GridFTP site is established in the index server, and information of the data resource list is mapped into the GridFTP site to be convenient for the GridFTP server to inquire data resources.

Description

technical field [0001] The invention is a grid-based data indexing scheme in the campus data transmission service. By adding the index service to the two components of MDS (Monitoring and Discovery System) and GridFTP (grid-based data transfer protocol) provided by Globus Toolkit (a toolkit provided by Globus), it is realized that Web users can easily obtain all information in MDS. The discovered data resource list is mainly used to solve data query during large-scale grid data transmission, and belongs to the field of computer network technology. Background technique [0002] The GridFTP service in the campus data transmission service has a large number and is frequently used. It has become an important platform for carrying campus culture. At present, there are two main problems in the data query of the existing campus GridFTP service: ① It is difficult to locate resource information: users cannot get the first Three-party tools for resource location. ②Insufficient descr...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/28H04L12/803
Inventor 王汝传徐冲季一木任勋益邓松易侃杨明慧付雄
Owner NANJING UNIV OF POSTS & TELECOMM
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