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Distributed file system and data backup method of distributed file system

A distributed file and metadata technology, which is applied to the redundancy in the operation for data error detection, response error generation, input/output to the record carrier, etc. The effect of improving disaster tolerance, improving security and reliability, and improving synchronization efficiency

Active Publication Date: 2018-02-02
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: The purpose of the invention is to solve the problem that the distributed file system in the prior art does not have the remote disaster recovery function, to provide a safe and reliable distributed file system, and to propose a data backup method

Method used

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  • Distributed file system and data backup method of distributed file system
  • Distributed file system and data backup method of distributed file system

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Embodiment Construction

[0022] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0023] see figure 1 figure 2 As shown, a distributed file system is used for the file disaster recovery system of the production center, including the local management server Master set in the production center, the local data storage server ChunkServer, the local metadata log server Metalogger, and the disaster recovery center set Remote management server Master, remote data storage server ChunkServer, remote metadata log server Metalogger, file synchronization server SyncServer connecting local management server Master and remote management server Master, and DNS intelligence connected to both local management server Master and remote manageme...

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Abstract

The invention belongs to the technical field of data storage, and discloses a distributed file system, including a file synchronization server SyncServer, a remote management server Master, a remote data storage server ChunkServer, a remote metadata log server Metalogger, and a DNS intelligent parser. When the Master, the local data storage server ChunkServer, and the local metadata log server Metalogger are down, the DNS intelligent resolver will switch the client to connect with the remote management server Master, and provide the client with the same services as the local management server Master. At the same time, the invention also discloses the data backup method of the distributed file system, which improves the synchronization efficiency.

Description

technical field [0001] The invention belongs to the technical field of data storage, and relates to a distributed file system and a data backup method of the distributed file system. Background technique [0002] The distributed file system is different from the ordinary file system. In addition to storing the actual data, the distributed file system also stores metadata that identifies the copy location of the data. This means that the traditional method of only backing up actual data is not applicable to distributed file systems. Taking data block information as an example, the data block information is marked with disk information and storage node information, and the disk information is unique. In the event of a disaster, even if the data block information and data are backed up to location B, no matching disk can be found, that is, the metadata backed up in the past is invalid; therefore, the distributed file system can only use its own internal backup mechanism for met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F3/06
Inventor 钱琳庞恒茂朱广新李东辉俞俊吴小志陈艳谢宾铭李蹊高王旭然方超魏宁
Owner STATE GRID CORP OF CHINA