本文關(guān)鍵詞：基于Cassandra的移動(dòng)終端云存儲(chǔ)的設(shè)計(jì)與實(shí)現(xiàn)　出處：《吉林大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 云存儲(chǔ) Android操作系統(tǒng) Cassandra分布式數(shù)據(jù)庫(kù)

【摘要】：云計(jì)算是當(dāng)代炙手可熱的名詞，它可以提供高可靠性的基礎(chǔ)軟硬件，廣闊的網(wǎng)絡(luò)資源，低成本的搭建和統(tǒng)一管理能力，，可以有效提高信息基礎(chǔ)設(shè)施建設(shè)的速度，解決大中型企事業(yè)單位和政府目前需要應(yīng)對(duì)的人工成本巨大、能源消耗過(guò)快和IT機(jī)房建設(shè)以及信息系統(tǒng)運(yùn)維難的問(wèn)題。 隨著云計(jì)算技術(shù)的不斷發(fā)展和深入人心，以云計(jì)算為基礎(chǔ)并著眼于提供高效便捷存儲(chǔ)服務(wù)的云存儲(chǔ)技術(shù)已經(jīng)得到了一定的發(fā)展�，F(xiàn)今，人們對(duì)數(shù)據(jù)存儲(chǔ)的方式有了新的看法，把數(shù)據(jù)保存在云端不僅可以方便快捷的使用數(shù)據(jù)，而且這種存儲(chǔ)方式不會(huì)因?yàn)橐恍┛陀^原因而導(dǎo)致數(shù)據(jù)丟失。進(jìn)而，移動(dòng)云存儲(chǔ)的概念也逐漸被提了出來(lái)，將移動(dòng)設(shè)備尤其是手機(jī)的重要數(shù)據(jù)備份存儲(chǔ)到云端可以在設(shè)備丟失時(shí)卻不丟失重要的數(shù)據(jù)，而且還可以隨時(shí)隨地的操作，方便快捷。本文針對(duì)上述問(wèn)題，在云端搭建了Cassandra集群，提供存儲(chǔ)服務(wù)，在移動(dòng)終端上開(kāi)發(fā)基于Android操作系統(tǒng)的客戶端程序，這樣便構(gòu)建了一個(gè)移動(dòng)云存儲(chǔ)服務(wù)系統(tǒng)。 本文第1章首先概述了科研相關(guān)背景和國(guó)內(nèi)外研究現(xiàn)狀，云計(jì)算以及云存儲(chǔ)在未來(lái)的發(fā)展趨勢(shì)，最后概括了本文的主要研究工作。 第2章在上一章的基礎(chǔ)上，詳細(xì)介紹了云存儲(chǔ)以及云計(jì)算的概念和相關(guān)特點(diǎn)。具體包括云存儲(chǔ)的四層模型，云存儲(chǔ)的技術(shù)前提等。為后文相關(guān)內(nèi)容的介紹做了充分的鋪墊。 第3章主要說(shuō)明基于Android的客戶端設(shè)計(jì)與實(shí)現(xiàn)。首先比較了4種主流的智能移動(dòng)終端操作系統(tǒng)Symbian、Iphone OS、BlackBerry OS和Android。結(jié)合系統(tǒng)實(shí)際要求選擇Android操作系統(tǒng)為本客戶端的開(kāi)發(fā)平臺(tái)。然后針對(duì)Android操作系統(tǒng)的平臺(tái)優(yōu)勢(shì)、系統(tǒng)架構(gòu)和應(yīng)用框架等方面進(jìn)行了詳細(xì)的說(shuō)明介紹。最后以5個(gè)活動(dòng)(Activity)為主體，介紹整個(gè)客戶端程序的設(shè)計(jì)思想和實(shí)現(xiàn)細(xì)節(jié)。 第4章主要說(shuō)明基于Cassandra的服務(wù)器端配置。首先在特點(diǎn)和數(shù)據(jù)模型等方面比較了3種開(kāi)源云存儲(chǔ)系統(tǒng)Mongo DB、Hadoop和Cassandra。綜合系統(tǒng)的需求和現(xiàn)有資源選擇Cassandra集群作為云存儲(chǔ)的服務(wù)器端開(kāi)發(fā)框架。然后重點(diǎn)介紹Cassandra集群的數(shù)據(jù)更新機(jī)制、數(shù)據(jù)讀取機(jī)制和數(shù)據(jù)壓縮機(jī)制，為進(jìn)一步的研究奠定基礎(chǔ)。最后說(shuō)明服務(wù)器端Cassandra集群的搭建和運(yùn)行的注意事項(xiàng)以及步驟。并詳細(xì)說(shuō)明各個(gè)Cassandra運(yùn)行配置項(xiàng)，以及添加節(jié)點(diǎn)、刪除節(jié)點(diǎn)和移動(dòng)節(jié)點(diǎn)等操作。 第5章闡述了實(shí)驗(yàn)過(guò)程并分析實(shí)驗(yàn)結(jié)果。首先做了穩(wěn)定性實(shí)驗(yàn)，通過(guò)控制變量法得出系統(tǒng)穩(wěn)定性良好的結(jié)論。然后做了有效性實(shí)驗(yàn)，發(fā)現(xiàn)系統(tǒng)能夠完整有效的將上傳到云端的文件下載下來(lái)，說(shuō)明系統(tǒng)有效性良好。 第6章對(duì)本文內(nèi)容進(jìn)行了總結(jié)并對(duì)未來(lái)需要進(jìn)行的工作做了展望。本文設(shè)計(jì)并實(shí)現(xiàn)的移動(dòng)云存儲(chǔ)系統(tǒng)完成了預(yù)期的功能，未來(lái)需要在功能性和安全性兩方面進(jìn)行深入研究。 研究移動(dòng)云存儲(chǔ)的意義在于推動(dòng)云存儲(chǔ)技術(shù)的擴(kuò)展以及方便人們生活，完善了與云存儲(chǔ)相關(guān)的理論，對(duì)其他云存儲(chǔ)技術(shù)的發(fā)展起到了促進(jìn)作用。
[Abstract]:Cloud computing is a noun contemporary hot, it can provide a basis for hardware and software of high reliability, wide cyber source, low cost and build a unified management ability, can effectively improve the information infrastructure construction, to solve the large and medium-sized enterprises and the government now needs to deal with the huge labor cost, energy consumption is too fast and IT computer room construction and information system maintenance difficult problem.
With the continuous development of cloud computing technology and popular, with cloud computing cloud storage technology as the basis and focus on providing efficient and convenient storage service has been developed rapidly. Nowadays, the way people for data storage, a new view, the data stored in the data cloud can not only convenient, but also not this storage method for some objective reasons caused the loss of data. Thus, the concept of mobile cloud storage has been proposed, the mobile device is especially important to the mobile phone data backup storage equipment in the cloud can be lost without losing important data, but also can whenever and wherever possible operation, aiming at convenient and quick. The above problems, set up the Cassandra cluster in the cloud, providing storage services, development of Android operating system based on client on the mobile terminal, thus constructed A mobile cloud storage service system.
In the first chapter, we first summarize the research background and the research status at home and abroad, the future trend of cloud computing and cloud storage. Finally, we summarize the main research work in this paper.
The second chapter, based on the previous chapter, introduces the concepts and characteristics of cloud storage and cloud computing in detail. It includes four layers of cloud storage models, the technology prerequisites for cloud storage, etc., which lays a solid foundation for the introduction of related contents.
The third chapter mainly explains the design and implementation of client based on Android. Firstly, compared the 4 mainstream mobile intelligent terminal operating system Symbian, Iphone OS, BlackBerry OS and Android. combined with the actual requirement of system Android operating system as the client development platform. Then the Android operating system platform, system architecture and application framework a detailed description is introduced. Finally in 5 activities (Activity) as the main body, introduces the design idea and implementation details of the client program.
The fourth chapter mainly explains the server configuration based on Cassandra. Firstly, in terms of features and data model comparison of 3 kinds of open source cloud storage system Mongo DB, integrated Hadoop and Cassandra. system requirements and the existing resource selection Cassandra cluster server development as cloud storage frame. Then focuses on updating mechanism of Cassandra cluster data, data read mechanism and data compression mechanism, lay the foundation for further research. Finally build server cluster Cassandra and notice of operation and procedure. And a detailed description of each Cassandra operation configuration items, and add nodes, delete nodes and mobile nodes and other operations.
The fifth chapter describes the process of experiment and analysis of the experimental results. Firstly, the stability experiment, by controlling variables that the system stability is good results. Then the validity of experiment, we found that the system could effectively be uploaded to the cloud file download system shows good effectiveness.
The sixth chapter summarizes the contents of this paper and looks forward to the future work. The mobile cloud storage system designed and implemented in this paper has completed the expected functions. In the future, we need to further study in two aspects of functionality and security.
The significance of research on mobile cloud storage is to promote the expansion of cloud storage technology and facilitate people's lives, improve the theory related to cloud storage, and promote the development of other cloud storage technologies.

【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP333

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相關(guān)期刊論文 前2條

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2 王培海;;基于Android的移動(dòng)云存儲(chǔ)系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)[J];電視技術(shù);2011年15期

本文編號(hào)：1400374