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File copy asynchronous writing method applied to distributed file system

A distributed file and file copy technology, which is applied in transmission systems, special data processing applications, electrical components, etc., can solve problems such as high cost, slow writing speed, and failure to write copies

Inactive Publication Date: 2014-01-29
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method ensures that all replicas can be successfully written to the data server, but only because a data server fails to write a replica, it must be rewritten, which is too expensive
Moreover, each data server writes data to the local hard disk, making the writing speed very slow

Method used

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  • File copy asynchronous writing method applied to distributed file system
  • File copy asynchronous writing method applied to distributed file system
  • File copy asynchronous writing method applied to distributed file system

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In order to illustrate "a method for asynchronous writing of file copies applied to a distributed file system", here is an example of "user A uploads a local file to the root directory of the distributed file system, and the number of copies is equal to 3".

[0029] After user A enters the root directory of the distributed file system, he first sends a request to write data to the metadata server. After receiving the request, the metadata server selects N data servers with low space usage and asks them to create file ...

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Abstract

The invention relates to a file copy asynchronous writing method applied to a distributed file system. The file copy asynchronous writing method is applied to write operations of the distributed file system and is composed of a metadata module, a regular check module, a data storage module, a write control module and a data server serial number list module. On the premise of guaranteeing reliability of data, a user carries out file writing operations on the distributed file system through the method, and the write operation speed of the distributed file system is increased.

Description

technical field [0001] The invention relates to an asynchronous writing method of a file copy applied to a distributed file system to improve the speed of writing files in the distributed file system, and belongs to the field of computer science and technology. Background technique [0002] With the advent of the cloud era, hundreds of millions of data are generated on the Internet every day, and this magnitude of data has far exceeded the storage and processing capabilities of a computer. Due to its characteristics of massive data storage, high scalability, high performance, high reliability, and high availability, the distributed storage system is currently being widely discussed and applied in the industry as an enterprise massive data storage solution. Files contain metadata and data. Metadata includes attribute information such as file name, size, access rights, and data storage location. Data is the actual file content. The distributed file system adopts a separate ...

Claims

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Application Information

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IPC IPC(8): H04L29/08G06F17/30
Inventor 陆月明杨宇
Owner BEIJING UNIV OF POSTS & TELECOMM
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