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Method and device of concurrent writes for distributed file system

A distributed file and file storage technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of poor random read and write performance of hard disk sectors, and cannot guarantee continuous storage of data block files, etc., to achieve The effect of file concurrent write performance improvement

Inactive Publication Date: 2012-08-01
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that although the local file system can guarantee the continuous allocation of file names when storing data blocks, it cannot guarantee the continuous storage of data block files in hard disk sectors.
Generally speaking, the random read and write performance of hard disk sectors is very poor, while the sequential read and write performance is very good

Method used

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  • Method and device of concurrent writes for distributed file system
  • Method and device of concurrent writes for distributed file system

Examples

Experimental program
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Embodiment Construction

[0038] This embodiment provides a method for concurrent writing in a distributed file system, and specifically adopts the following technical solutions:

[0039] The metadata server maintains the storage resource information of each file storage server;

[0040] When the metadata server receives a concurrent write request, that is, multiple file access servers simultaneously initiate multiple data write requests within a set short period of time, the concurrent write The incoming data is assigned adjacent storage addresses (that is, storage locations).

[0041] Wherein, the storage resource information includes: file storage server information, hard disk information, and hard disk physical block information.

[0042] Wherein, the file storage server information includes the information of each file storage server, and is identified according to the network address of the file storage server;

[0043] The hard disk information is identified according to the serial number of t...

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Abstract

The invention discloses a method and device of concurrent writes for a distributed file system. A metadata server maintains storage resource information of a file storage server and distributes adjacent storage addresses for concurrently written data according to the maintained storage resource information when receiving concurrent write requests from multiple file access servers. Concurrently written and dispersed file data blocks from a file access client are stored in continuous sectors of a single hard disk drive, and accordingly the concurrently written file data blocks can be continuously written into the hard disk drive at high speed, and the concurrent write capacity of files is improved evidently.

Description

technical field [0001] The invention relates to the field of computer application technology, in particular to a method and device for concurrent writing in a distributed file system. Background technique [0002] With the rapid development of the Internet and the multimedia industry, the storage of massive media files puts forward higher requirements for storage technologies and systems. To ensure high reliability, large capacity, and cost-effectiveness, IT vendors and Internet service providers usually use distributed file systems to store data. The distributed file system uses redundant storage to ensure the reliability of stored data, and uses highly reliable software to compensate for the unreliability of hardware, thereby providing a cheap and reliable massive distributed storage and computing system. [0003] Such as figure 1 As shown, in a distributed file system, it generally includes a metadata server, a file storage server, and a file access server, wherein: the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 丁毅王魏强
Owner ZTE CORP
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