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Data copy update method and metadata server

A metadata server and data copy technology, applied to electrical components, transmission systems, etc., can solve the problems of data copy taking a lot of time, lack of updating data copy, affecting the timeliness of visitor data, etc.

Active Publication Date: 2017-09-29
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these data copies are read and written multiple times, if a data copy needs to be updated, other data copies also need to be updated synchronously, and the synchronous update of data copies will take a lot of time, which will affect the access of visitors to data Timeliness
However, there is currently no mechanism to update data copies in a timely manner

Method used

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  • Data copy update method and metadata server
  • Data copy update method and metadata server
  • Data copy update method and metadata server

Examples

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Embodiment Construction

[0037] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0038] Such as figure 1 As shown, it is a schematic diagram of a mass data storage system of a metacomputing platform applying the metadata server embodiment of the present invention. In the massive data storage system of the meta-computing platform, the client 1 can access the metadata server 2, and the metadata server 2 stores metadata, that is, the description information of the data module, and the data module consists of multiple copies of data, namely Data copy 3 constitutes. Client 1 can perform read and write operations on the duplicated version of the data desired to be obtained. When the user writes to data copy 3 through client 1, other data copies 3 also need to be updated.

[0039] Based on the above system, figure 2 A schematic flowchart of an embodiment of the data copy updating method of the present...

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Abstract

The present invention relates to a data copy update method and a metadata server. The data copy update method includes: receiving a data update request sent by a client, and querying the activity of metadata corresponding to the data copy to be updated according to the data update request; The activity of the data is compared with the preset activity threshold. If it exceeds the preset activity threshold, an update flag representing a higher priority is set for the data module corresponding to the metadata; check the update of the data module corresponding to the metadata mark, if the priority represented by the update mark is higher than the current processing priority, search for each data copy of the data module corresponding to the metadata; update each data copy in order of the activity of each data copy. The present invention takes the activity of metadata and corresponding data copies as the basis for priority updating, so that frequently accessed data modules can be synchronously updated in time, thereby not affecting the timeliness of access to data by visitors.

Description

technical field [0001] The invention relates to the application field of cloud computing mass storage, in particular to a data copy updating method and a metadata server. Background technique [0002] In today's information society, a large amount of data that needs to be saved is generated every day, which makes cloud computing mass storage system a hot issue in current research and application. For the massive data storage system of the cloud computing platform, it saves a large amount of data and provides access interfaces for these data, and users can read and write data by accessing these interfaces. [0003] When the data in the massive data storage system of the cloud computing platform is frequently accessed, the original data will be copied into multiple data copies to provide to the visitors. Visitors can perform write-update operations on the copies of the data they obtain. When these data copies are read and written multiple times, if a data copy needs to be up...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
Inventor 顾茜
Owner CHINA TELECOM CORP LTD
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