Distributed geographical file system

Abstract

The invention provides a distributed geographical file system. The system comprises a distributed file system framework, a small file access strategy and a geographical space digital object model, wherein the distributed file system framework comprises a management server node, a data server node, a digital object server node and a client node; a staging buffer strategy is adopted by a big file access strategy when a file is built; a production line mode is adopted when a transcript is generated; an in-block index is added in the data server node; element data storage pressure for managing the server node is reduced by performing secondary index on the small file; the geographical space digital object model comprises a geographical digital object mark, digital object element data, a space index storage structure and an algorithm, geographical information version information and file description; and by the interactive design of the distributed file system, all file system element data are managed by the management server node so as to realize communication management between servers as well as between the servers and the clients.

Description

technical field [0001] The invention relates to the technical field of geographic information and data storage, in particular to a distributed geographic file system. Background technique [0002] With the continuous acceleration of the digitalization process and the continuous enrichment of geographic information acquisition methods, geographic information is growing exponentially, and the types of geographic data are more diverse, including large data files exceeding 64MB such as images and videos, and a large number of small files such as pictures and texts. , the data structure is more complex, which brings great difficulty and complexity to the management and sharing of geographic information. [0003] In the field of geographic information, geospatial digital objects refer to geographic information stored in computer systems. The digital object encapsulates the text, image, video, metadata and other forms of multimedia data related to the geographical target and the o...

AI Technical Summary

Problems solved by technology

[0006] However, the general distributed file system architecture mainly solves the problem of large file storage, and cannot meet the requirements of Web services for geographic information on efficient storage of large and small files and high concurrent access. According to the requirements of Web services for storage and access to geographic data files, the A dedicated distributed geographic data file architecture is developed to overcome the defects of existing technologies and efficiently realize the maximum wind energy tracking of direct-drive wind turbines

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