Out-of-Domain Backup in P2P Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Peer to Peer (P2P) networks face challenges in ensuring data availability and reliability, particularly when a large number of nodes exit the network abnormally, as current backup methods are limited to internal DHT network backups and fail to guarantee data recovery in high-reliability scenarios.
Innovation Solution
The method involves out-of-domain backup operations in a P2P network, where nodes with different domain identifiers collaborate to backup and recover resource information, using a system that includes initiating nodes, connecting nodes, and out-of-domain backup nodes to ensure data availability and reliability across domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource information is backed up only within the same DHT network using internal backup methods, then the maintenance complexity is low, but the data availability and reliability cannot be guaranteed when many nodes exit abnormally
Solution Approach 1:
The patent introduces a new dimension by enabling backup nodes to exist in different domains (out-of-domain backup) rather than limiting backups to the same domain. This cross-domain backup mechanism increases the search space for available backup copies, improving data availability when nodes within the local domain fail, while maintaining manageable complexity through systematic domain-based organization.
2Reliability
If multiple backup copies are stored in different nodes, then data reliability improves, but the maintenance overhead and storage requirements increase
Solution Approach 1:
The patent applies local quality by differentiating between in-domain and out-of-domain backup strategies. Instead of uniformly storing multiple copies everywhere, the system strategically places backup copies both within the same domain (in-domain backup) and in different domains (out-of-domain backup), optimizing the balance between reliability and storage requirements based on local failure scenarios.
3Adaptability or versatility
If nodes are organized into domains with different domain identifiers, then out-of-domain backup capability is enabled, but the system complexity and routing overhead increase
Solution Approach 1:
The patent segments the P2P network into multiple domains with different domain identifiers, allowing nodes to be organized in a hierarchical manner. This segmentation enables out-of-domain backup operations while managing complexity through domain-based routing tables and structured communication protocols that handle cross-domain requests systematically.
Data Source
AI summary
The present invention provides a method for resource information backup operation based on peer to peer network, comprising: an initiating node sending an out-of-domain backup node determining request to a connecting node in backup domain, and said out-of-domain backup node determining request including the resource global identifier of said resource information to be backed up, and the connecting node in said backup domain and said host node in which the resource information is saved have different domain identifiers; the connecting node in said backup domain determining an out-of-domain backup node according to information of said resource global identifier and out-of-domain backup rules, and sending routing information of said out-of-domain backup node to said initiating node; and said initiating node sending an out-of-domain backup operation request to said out-of-domain backup node according to said routing information, and said out-of-domain backup node implementing corresponding processing according to said out-of-domain backup operation request.