Distributed File Management Difference Data Registration
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Solution Overview
Problem
In distributed file management systems, the integration of blockchain requires managing both updated and pre-updated files, leading to increased file sizes due to the need for new registrations, which complicates the system's efficiency.
Innovation Solution
An update device and method that create difference data between original and updated files, along with a route object linking the original file and difference data, are used to register only the difference data and route object in the system, reducing the average file size by allowing efficient retrieval of updated files through recursive processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the updated file is newly registered in the distributed file management system, then the file update is completed, but the average file size per file managed in the system becomes large
Solution Approach 1:
The patent segments the updated file into two components: the original file (retained in the system) and the difference data (newly registered). This segmentation allows the system to store only the changes rather than the entire updated file, thereby reducing the average file size while maintaining complete file version history for reliability.
Solution Approach 2:
The patent extracts the essential change information from the updated file and registers only this difference data in the distributed file management system. The original file is referenced through the route object, allowing the system to take out only the necessary new information while preserving access to the complete file through the link to the original file.
2Reliability
If the blockchain is cooperated with the distributed file management system, then the robustness against falsification is improved, but the file sizes to be managed in the entire system become large
Solution Approach 1:
The patent segments file management into two parts: the immutable blockchain record (containing only difference data and route objects for robustness) and the full file storage (original files retained in the distributed file management system). This segmentation allows blockchain to provide robustness for metadata and version history while avoiding the need to store entire large files on the blockchain.
Solution Approach 2:
The patent introduces a route object as an intermediary between the blockchain and the actual file data. The route object contains links to both the original file and the difference data, serving as a mediator that allows the blockchain to reference files without storing their full contents, thus maintaining robustness while reducing storage requirements.
3Quantity of substance
If the difference data and route object are registered instead of the updated file, then the average file size is reduced, but the system complexity increases
Solution Approach 1:
The patent makes the route object a multi-functional element that serves multiple purposes: it acts as a reference link to the original file, stores information about the difference data, and provides the structure for version history management. This universality reduces the need for separate data structures and simplifies the overall system despite the introduction of difference data registration.
Solution Approach 2:
The patent implements a nested structure where the route object contains links to both the original file and the difference data, creating a compact representation of the file version history. This nesting allows the system to manage multiple file versions efficiently without requiring separate management structures for each version, thereby reducing operational complexity.
Data Source
AI summary
When an updated file that is an updated version of an original file is registered in a distributed file management system 100, a difference creation unit 222 creates a difference file between the original file and the updated file, a route object creation unit 223 creates a route object that includes an ID of the original file and an ID of the difference file, and a distributed file management client 11 causes the difference file and the route object to be registered in the distributed file management system 100.