Catalog Service Partial Seeding for P2P Networks
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Solution Overview
Problem
Traditional content delivery systems using peer-to-peer networks are inefficient as they require seed devices to store complete data files, limiting their availability and resource usage, and do not optimize the distribution of sub-pieces effectively across peer devices.
Innovation Solution
Implementing a catalog service that maintains an active peer list and divides data files into sub-pieces, assigning seed sub-pieces based on device constraints and network proximity, allowing more devices to act as seed devices by storing only a subset of the data file, thereby optimizing the distribution and redundancy of sub-pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If seed devices store complete data files, then data file availability is ensured, but device resource usage increases and device availability decreases
Solution Approach 1:
The patent divides complete data files into multiple sub-pieces and distributes them across different peer devices. Instead of requiring each seed device to store the entire file, the system segments the file and assigns specific sub-pieces to specific devices based on their constraints and network proximity, thereby reducing resource usage while maintaining overall file availability.
Solution Approach 2:
The patent assigns different sub-pieces of data files to different peer devices based on their local characteristics such as storage capacity, processing power, and network proximity to leeching devices. Each device stores only the sub-pieces appropriate for its local capabilities, optimizing resource usage while ensuring file availability.
2Reliability
If seed devices store complete data files, then data distribution reliability is improved, but the number of available seed devices decreases
Solution Approach 1:
By segmenting data files into sub-pieces, the patent enables multiple peer devices to act as seed devices for different portions of the same file. This segmentation allows the system to have many seed devices available, each storing only a subset of the total data, thereby increasing the quantity of seed devices while maintaining distribution reliability through the distributed nature of the sub-pieces.
Solution Approach 2:
The patent implements partial seeding where devices store only a portion (sub-pieces) of the complete data file rather than the entire file. This partial action approach allows more devices to participate as seed devices, increasing the overall number of available seeds in the network while the coordinated distribution of these partial pieces ensures complete file availability.
3Use of energy by moving object
If data files are divided into sub-pieces and distributed across peer devices, then resource usage is reduced and device availability increases, but distribution efficiency may worsen without optimization
Solution Approach 1:
The patent incorporates feedback mechanisms where the catalog service monitors peer device status, sub-piece distribution status, and leeching device requests. Based on this feedback, the system dynamically assigns sub-pieces to appropriate seed devices and routes leeching requests to optimize distribution efficiency, ensuring that resource usage is reduced without sacrificing productivity.
Solution Approach 2:
The patent changes key parameters of the distribution system by introducing sub-piece granularity, device constraint profiles, and network proximity metrics. These parameter changes enable optimized assignment of sub-pieces to devices based on their specific characteristics, improving distribution efficiency while maintaining reduced resource usage compared to traditional complete-file seeding.
Data Source
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AI summary
In one example, a peer-to-peer network may use partial seeding to increase the number of seed devices available to a peer device acting as a leeching device. A catalog service may maintain an active peer list for a peer-to-peer network. The catalog service may track a data file composed of a set of sub-pieces for the peer-to-peer network. The catalog service may identify a device constraint for a peer device of the peer-to-peer network. The catalog service may assign a seed sub-piece of the data file based on the device constraint to the peer device when executing a seed client to provide the seed subpiece to a leeching client on the peer-to-peer network. The catalog service may direct the peer device to retain a persistent sub-piece on the peer device as the seed sub-piece for the peer device until a release event.