Management method of distributed storage, device and system thereof

A technology of distributed storage and management methods, applied in the field of devices and systems, and management methods of distributed storage, can solve the problems of violation, waste of storage node resources, and unguaranteed service quality, and achieve the effect of reasonable service quality

Inactive Publication Date: 2010-06-09
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

The frequency of client access to files may be very high. According to the existing copy management scheme, the number of copies needs to be increased. However, because the client can improve enough service capabilities, it does not need to increase the number of copies to meet the needs of the client. , which results in a waste of storage node resources
[0008] Moreover, if the access frequency of a certain file is not high, i

Method used

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  • Management method of distributed storage, device and system thereof
  • Management method of distributed storage, device and system thereof
  • Management method of distributed storage, device and system thereof

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Embodiment Construction

[0037] In the distributed storage system, the storage server (ChunkServer) is used as the storage node to form a DHT (Distributed Hash Table, Distributed Hash Table) network; the client performs various operations in the system through known storage nodes, such as: publishing , query, update, and delete files. Each file is managed by a specific storage node for its metadata, including file version number, size, block information, a list of storage nodes where copies of each block are distributed, and a list of clients who download and own the file. This node Known as the storage root node for the file. Generally speaking, the storage root node is calculated by hashing the name of the file. Since the storage root node corresponding to each file may be different, this disperses the load pressure of each storage node.

[0038] A storage node generally consists of four functions: storage function, domain management function, DHT routing function and file management function.

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Abstract

The invention discloses a management method of distributed storage, a device and a system thereof, relating to a service type distributed storage system, and solving the problem of the prior art in lack of consideration for copy management from the angle of user experience. The embodiment of the invention is implemented by calculating the user experience value at the client, transmitting the user experience value to a store root node, working out the integral user experience value by the store root node according to the received user experience value, and adjusting the number of the copies in corresponding management zones. The embodiment of the invention is mainly applied to the distributed storage system, in particular to the distributed storage system under P2P mode.

Description

technical field [0001] The invention relates to a service-type distributed storage system, in particular to a distributed storage management method, device and system. Background technique [0002] In the distributed storage system, a multi-copy method is used to provide services for clients. The so-called multi-copy method is to save the files provided with the service as multiple copies in the storage system. When one or more copies in the system fail, the client can obtain corresponding services from other copies that have not failed. Therefore, providing services in a multi-copy manner can improve the reliability of the system. At the same time, in general, multiple copies of a distributed storage system are distributed on different storage nodes, which can effectively distribute the access load to multiple storage nodes. In addition, users can choose the copy closest to the client to obtain the corresponding service, which shortens the response time of client access. ...

Claims

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Application Information

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IPC IPC(8): H04L29/08
Inventor 戴芬王铁英段翰聪任立勇侯孟书
Owner HUAWEI TECH CO LTD
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