Balancing method and system for improving the survivability of P2P data storage

A technology of data storage and balancing method, applied in the field of computer network, it can solve the problems of uncomprehensive consideration of query and maintenance measures, the lack of universal adaptability of the scheme, the inconsistency of maintenance resources, etc., to achieve good scalability, easy management and maintenance. Maintenance, the effect of facilitating data maintenance

Active Publication Date: 2018-12-07
XIDIAN UNIV
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Problems solved by technology

[0015] In summary, the problems in the prior art are: Only focus on a specific DHT system and propose related data placement strategies to improve system invulnerability, that is, most solutions are not universally adaptable
The dynamics of the DHT system may lead to routing failure, loss of storage resources, or inconsistencies in the maintenance resources of nodes in the overlay network
[0017] (2) Most storage strategies can only improve the invulnerability of specific systems
Without comprehensive consideration of query and maintenance measures, a set of mechanisms for improving system invulnerability is proposed

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  • Balancing method and system for improving the survivability of P2P data storage

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[0064] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0065] Structured P2P storage is a kind of distributed storage. Without the need of a server, each client is responsible for a small range of routing and is responsible for storing a small part of data, thereby realizing the addressing and storage of the entire DHT network, such as CAN, Pastry, Chord. The dynamic nature of the DHT system may lead to routing failure, loss of storage resources, or inconsistencies in the maintenance resources of nodes in the overlay network.

[0066] Such as figure 1 As shown, the balanced method for improving the invulnerability of P2P data storage provided by the embodiment of the present...

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Abstract

The invention belongs to the technical field of computer networks, and discloses a balancing method and system for improving the survivability of P2P data storage. The method includes the steps of carrying out a distribution mechanism for mapping the IP addresses of participating nodes into data of a linear space through the hash function, segmenting the space according to replication factors, carrying out query and consistency maintenance mechanism to determine the nearest region containing a copy node according to the key value of a request node, and determining a basic consistency maintenance strategy and a periodical consistency maintenance strategy by a routing protocol in a given DHT system. The performance evaluation indexes are divided into dynamic and static performance indexes for the first time, the evaluation of the algorithm is more comprehensive and accurate, and the method can be applied to systems with different scales. Meanwhile, the algorithm can be used in protocolsof different DHT systems, that is a user interface corresponding to the system applying the algorithm can be based on different protocols, and management and maintenance are facilitated.

Description

technical field [0001] The invention belongs to the technical field of computer networks, and in particular relates to an equalization method and system for improving the invulnerability of P2P data storage. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] 1. With the rapid development of computer networks and the rapid popularity of office automation, data storage has received more and more attention. However, P2P systems have been extensively analyzed in recent years due to their good performance (distribution, scalability). The phenomenon of data availability performance degradation caused by the dynamic nature of P2P systems (which is related to the frequent joining, leaving or failure of participating nodes in the system) is one of the challenges in the design of data storage strategies for P2P systems. One of the ways to improve system fault tolerance under high loss rate is to design a better...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/104H04L67/1042H04L67/1097
Inventor 齐小刚强敏刘立芳冯海林胡绍林
Owner XIDIAN UNIV
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