基于hadoop的云存儲(chǔ)軟件

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摘要 云計(jì)算時(shí)代，隨著網(wǎng)絡(luò)終端設(shè)備的廣泛使用以及互聯(lián)網(wǎng)技術(shù)的進(jìn)一步普及，數(shù)據(jù)存儲(chǔ)與備份技術(shù)已經(jīng)與個(gè)人生活及組織的運(yùn)作息息相關(guān)，企業(yè)與個(gè)人均面臨著海量數(shù)據(jù)的管理難題。云存儲(chǔ)及其相關(guān)技術(shù)的發(fā)展給數(shù)據(jù)存儲(chǔ)領(lǐng)域帶來了革新，基于云存儲(chǔ)的在線存儲(chǔ)系統(tǒng)能夠向用戶提供永久的，存儲(chǔ)空間可擴(kuò)展的，便捷的，價(jià)格低廉的數(shù)據(jù)存儲(chǔ)與備份服務(wù)。
本文從需求與問題出發(fā)，深入研究了實(shí)現(xiàn)基于云存儲(chǔ)的文件同步存儲(chǔ)系統(tǒng)的關(guān)鍵技術(shù)，主要分析了分布式文件系統(tǒng) HDFS，闡述其體系結(jié)構(gòu)，介紹其主要構(gòu)成組件，詳細(xì)分析其工作原理和數(shù)據(jù)維護(hù)方式，在對(duì)hadoop平臺(tái)的文件調(diào)度充分研究的基礎(chǔ)上，實(shí)現(xiàn)了基于Hadoop的云存儲(chǔ)系統(tǒng)在用戶的客戶端方面的管理，采用B/S架構(gòu)的方式，方便用戶隨時(shí)隨地管理自己的存儲(chǔ)空間和文件。本地文件上傳到集群服務(wù)器中進(jìn)行存儲(chǔ)，而用戶的文件數(shù)據(jù)存儲(chǔ)到磁盤中之前，都必須經(jīng)過分布式文件系統(tǒng) HDFS的處理，實(shí)現(xiàn)將數(shù)據(jù)文件分散的存儲(chǔ)在網(wǎng)絡(luò)中的各個(gè)數(shù)據(jù)節(jié)點(diǎn)之中。最后，本文采用分層模塊化的方法對(duì)系統(tǒng)進(jìn)行設(shè)計(jì)與實(shí)現(xiàn)，并且在論文的最后兩個(gè)章節(jié)對(duì)系統(tǒng)的功能模塊進(jìn)行了測(cè)試與分析，總結(jié)了研究成果和系統(tǒng)的可擴(kuò)展功能，最后展望了下一步工作。
本文首先要闡述云存儲(chǔ)的相關(guān)理論，需要介紹云存儲(chǔ)的定義、云存儲(chǔ)系統(tǒng)結(jié)構(gòu)及其應(yīng)用等內(nèi)容；接著對(duì)HDFS數(shù)據(jù)管理機(jī)制及其實(shí)現(xiàn)技術(shù)進(jìn)行詳細(xì)分析，為論文下一步的研究提供了技術(shù)保障；最后，通過結(jié)合實(shí)際需求，在對(duì)某云存儲(chǔ)服務(wù)系統(tǒng)業(yè)務(wù)分析的基礎(chǔ)上，對(duì)服務(wù)系統(tǒng)存儲(chǔ)體系結(jié)構(gòu)、功能結(jié)構(gòu)、數(shù)據(jù)庫及運(yùn)行環(huán)境進(jìn)行設(shè)計(jì)，并對(duì)該系統(tǒng)加以實(shí)現(xiàn)，從而為小范圍局域網(wǎng)絡(luò)的數(shù)據(jù)存儲(chǔ)提供了一個(gè)有效的解決方案。本文雖然現(xiàn)實(shí)了云存儲(chǔ)功能，但是對(duì)于如何保障云中數(shù)據(jù)安全和個(gè)人用戶隱私這一難題，仍未有效解決，這是今后研究的重點(diǎn)。
關(guān)鍵詞：云計(jì)算；云存儲(chǔ)；hadoop；HDFS；B/S架構(gòu)


Hadoop cloud-based storage software
Abstract Cloud computing time, with the further spread of Internet technology and the widespread use of network terminal equipment, data storage and backup technology is already operational and is closely related to personal life and organization, businesses and individuals are faced with massive data management challenges.Development of cloud storage and related technologies to the field of data storage brings innovation to provide permanent, scalable storage space, convenient, inexpensive data storage and backup services to users of the system based oncloud storage online storage.
In this paper, starting from the needs and issues, in-depth study of the key technologies of cloud storage-based file synchronization storage system, analyzes the distributed file system HDFS, describes its architecture, describes its main constituent components, a detailed analysis of its working principle and data maintenance mode, based on the hadoop platform file scheduling full study on the realization of the cloud-based Hadoop source systems management at the client side user, the use of B / S architecture, user-friendly management of their storage anywhere space and file.Upload files to the local cluster server for storage, and the user's data is stored in the file to disk before, must undergo treatment HDFS distributed file system, to achieve the data among the various data files distributed storage nodes in the network.Finally, this paper uses a hierarchical modular approach to the design and implementation of the system, and in the last two chapters of the thesis functional modules of the system were tested and analyzed, summarized the research results and system scalability features, finally prospected the next step.
This paper first describes the theory of cloud storage, the need to introduce the definition of cloud storage, cloud storage system architecture and application content; then on HDFS data management mechanism and its implementation techniques for detailed analysis, the next step for the research paper provides a technical guarantee;Finally, through a combination of actual demand, on the basis of a cloud storage service systems business analysis, system storage services architecture, functional structure, databases and operating environment for the design, and the system to be implemented so as to small-scale local area network data storage provides an efficient solution.In this paper, although the reality of the cloud storage capabilities, but for how to protect cloud data security and personal privacy of the problem, yet effective solution, which is the focus of future research.
Key Words：Cloud Computing;Cloud Storage;hadoop;HDFS;B / S architecture

目錄
第一章 引言 1
1.1 研究背景 1
1.2 研究意義 2
1.3 研究內(nèi)容 2
第二章 相關(guān)技術(shù)研究介紹 4
2.1 B/S 架構(gòu) 4
2.2 云存儲(chǔ)概述 5
2.2.1 云計(jì)算 5
2.2.2 跨入云存儲(chǔ)時(shí)代 7
2.3 Hadoop系統(tǒng)研究 8
2.3.1 hadoop簡介 8
2.3.2 HDFS 設(shè)計(jì)理念 8
2.3.2 HDFS 體系結(jié)構(gòu) 9
第三章 信息存儲(chǔ)平臺(tái)的分析 12
3.1 系統(tǒng)可行性分析 12
3.2系統(tǒng)設(shè)計(jì)目標(biāo) 13
3.3系統(tǒng)功能需求 13
3.4 系統(tǒng)整體設(shè)計(jì) 14
3.4.1 登陸模塊 15
3.4.2 管理員模塊 15
3.4.3 普通用戶模塊 16
第四章 信息存儲(chǔ)平臺(tái)設(shè)計(jì) 18
4.1 云存儲(chǔ)集群的搭建 18
4.2系統(tǒng)關(guān)鍵技術(shù)實(shí)現(xiàn)方法 21
4.2.1 登..