Optimized transcript distributing method in data grid

A data grid and replica technology, applied in data exchange network, redundancy in computing, data error detection, digital data processing, etc. The effect of reducing resource response time, reducing cost, and reducing overhead

Inactive Publication Date: 2011-06-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0014] The purpose of the present invention is to provide an optimized replica distribution method to solve the problems of high cost of replica consistency maintenance and poor access performance when the shared resources are read-write resources when the existing replica technology is applied in the data grid , calculate the number and location of replicas according to the node's access to data resources, and dynamically adapt to changes in data access requests and network communication conditions

Method used

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  • Optimized transcript distributing method in data grid
  • Optimized transcript distributing method in data grid
  • Optimized transcript distributing method in data grid

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0053] Each super node undertakes the responsibility of copy management for its own shared resources and the shared resources of ordinary nodes it manages, and is responsible for formulating an optimized copy distribution strategy. The super node periodically records the access status of all copies under the data resources it manages, including when and from which node in which domain the request was sent, which copy was accessed, the response time of the resource, etc. These replica access information are recorded in the super node's local replica directory.

[0054] For example, resource LR j The distribution of copies of the image 3 As shown in the figure, two domains are shown in the figure, and the domain supernodes are node A and node B respectively. Resource LR j There are 4 copies, which are respectively placed on node A1, node A12...

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Abstract

The invention relates to an optimized transcript distributing method in a data grid, belonging to the field of grid computation, and concretely relates to a grid system, in particular to a transcript distributing method in the data grid system. The invention provides a distributed dynamic self-adaptive transcript distributing method in the data grid, aiming at reducing the access cost of the resource request party, and comprising the following steps of: calculating the transcript amount through the response time of resources; and determining proper transcript place via comprehensive consideration of factors of load factor, node performance, real-time bandwidth, and the like so that the transcript distribution can be dynamically suitable for variation of access request and the network communication state. Compared with the existing method for simply requiring transcript amount to improve the data access performance, the invention evaluates the transcript amount and the optimum transcript place from the overall situation of the system, thereby effectively balancing the relationship between the transcript amount and the transcript maintenance cost. The method is not only suitable fordata grid systems of read-only resources and particularly suitable for data grid systems with read-write data resources.

Description

technical field [0001] The present invention mainly designs an optimized copy distribution method in a data grid, belongs to the grid computing (Grid) field, and specifically relates to a grid system, especially the distribution of copies in a data grid system. Background technique [0002] As a new type of network computing platform, the purpose of the grid is to construct a dynamic virtual organization on a distributed, heterogeneous, and autonomous network resource environment, and to realize resource sharing and resource collaboration across autonomous domains within it. Data grid is the application and realization of grid technology in data management. Facing the heterogeneous environment of wide area network, it integrates various data resources distributed on the network, shields the heterogeneity of underlying physical resources, and provides general and reliable data for upper-layer applications. Data service, realizing the integrated access, storage and service arc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F17/30H04L12/24H04L12/26
Inventor 孙新郑军高春晓
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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