Spatial data storage organization method and system considering load balancing and disk efficiency

Abstract

The invention discloses a spatial data storage organization method and system considering load balancing and disk efficiency, comprising: counting the average access concurrency of spatial data files according to the number of access requests of spatial data files by users; Load balancing requirements, according to the average access concurrency, the spatial data files are distributed and stored in the distributed geographic information system server; according to the average access concurrency and the average access interval distance of the spatial data files, the average access continuity of the spatial data files is calculated; according to The average access continuity of spatial data files, the spatial data files in the same server are stored and organized continuously. The invention realizes effective batch reading of continuously accessed spatial data while satisfying the requirement of load balance, and ensures the storage efficiency of the geographic information system. This project is supported by the National Natural Science Foundation of China (fund number: 41671382, 41271398).

Description

technical field [0001] The invention belongs to the technical field of spatial data storage organization, and in particular relates to a spatial data storage organization method and system considering load balancing and disk efficiency. Background technique [0002] The application of geographic information system in the fields of urban planning, environmental monitoring, and disaster prevention and mitigation is becoming more and more popular. It is necessary to focus on solving the infinite bandwidth demand (Infinite Bandwidth) and infinite capacity demand (Infinite Capacity) brought about by the intensive access of users. As well as Infinite Processing Capability, distributed systems provide storage and access services for massive spatial data and become one of the effective ways to solve the above problems. At present, traditional network geographic information systems, such as NASA WorldWind, usually adopt a data-driven spatial data storage organization method, which ma...

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Problems solved by technology

[0005] In short, the existing methods of distributing and storing spatial data purely from the perspective of improving the concurrency capability of geographic information systems or improving the continuous reading efficiency of spatial data through combined storage cannot meet the load balancing requirements of geographic information systems and efficient disk I / O at the same time. O demand

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