The Design And Implementation Of Peer-to-peer Network Retrieval Tactics Based On Cloud Storage System

Cloud storage,with the aid of cluster technology, grid technology and distributed file system, realize that a wide range of storage devices in the network work together and make sure that a variety of different types of equipment can provide the same access to data storage and business functions, satisfied people's growing data information query retrieval and storage requirements. Cloud storage retrieval strategy is an important measure standard of cloud storage system performance indicators, and its performance, efficiency, also determines the performance and efficiency of cloud storage system. At the same time, designing a high performance cloud storage system will face with many problems such as distribution, heterogeneity, transparency, extension, reliability, concurrency and query efficiency.This thesis, combined the relevant thought and technology of P2 P, use a modified Chord algorithm to organize service management node and distribution of the user's request, using storage cluster to complete data storage and management. P2 P technology applied to the design of cloud storage system, we design a model of cloud storage index based on structured peer-to-peer network. The specific research objectives can be divided into the following three sub-goals:1. This thesis analysis the traditional P2 P system principle and function, combined with cloud storage was improved, and describe its theoretical advantages and improvements. Using the improved Chord algorithm, namely DL-Chord algorithm, and combined with cloud storage characteristics, improve the performance of the system.2. This thesis designs a cloud storage search strategy depending on the peer-to-peer network. We adopt a three-section method address to arrange similar content in adjacent storage location, improved the efficiency of the retrieval. We detailed design and expounds the retrieval tactics in the system work mechanism. Compare the performance of the new method with conditional hash method using simulated data. Design the total scheme of the system according to the analysis of the function and give the system of all parts of the design idea and workflow.3. Complete the cloud storage retrieval strategy that based on structured peer-to-peer network according to design implementation. Provide the system components, parameters, that used in the fields of the basic structure of the designed system then complete the retrieval strategy involves the core functions of the system.