本文選題：移動(dòng)數(shù)據(jù)庫(kù) + 數(shù)據(jù)同步　； 參考：《長(zhǎng)春理工大學(xué)》2012年碩士論文

【摘要】：近年來(lái),隨著通訊技術(shù)和互聯(lián)網(wǎng)技術(shù)的迅速發(fā)展,以及PDA、筆記本電腦、智能手機(jī)等便攜設(shè)備的快速更新,移動(dòng)數(shù)據(jù)庫(kù)技術(shù)得到了廣泛的應(yīng)用。同時(shí),也伴隨有諸多新的問(wèn)題產(chǎn)生,其中數(shù)據(jù)同步復(fù)制過(guò)程中如何確保數(shù)據(jù)一致性問(wèn)題是研究的重點(diǎn)。 針對(duì)這一問(wèn)題,本文從緩存技術(shù)著手,采用基于數(shù)據(jù)分類(lèi)和優(yōu)先級(jí)的動(dòng)態(tài)管理策略來(lái)控制緩存內(nèi)容,對(duì)數(shù)據(jù)緩存工作過(guò)程中聯(lián)機(jī)狀態(tài)、斷接狀態(tài)和集合狀態(tài)的網(wǎng)絡(luò)連接特點(diǎn)進(jìn)行了研究分析,提出了基于混合復(fù)制方式的同步復(fù)制機(jī)制,即采用惰性復(fù)制和主從復(fù)制與對(duì)等復(fù)制混合的同步機(jī)制來(lái)確保數(shù)據(jù)的一致性。對(duì)同步過(guò)程中數(shù)據(jù)沖突問(wèn)題,運(yùn)用了針對(duì)不同沖突類(lèi)型采取不同協(xié)調(diào)和回滾策略來(lái)解決沖突的方法。本文在數(shù)據(jù)緩存技術(shù)研究分析的基礎(chǔ)上,對(duì)混合同步復(fù)制模塊中各部分的功能和工作流程進(jìn)行了設(shè)計(jì)和詳細(xì)的闡述,最后通過(guò)實(shí)驗(yàn)對(duì)同步機(jī)制的性能進(jìn)行了測(cè)試,并與傳統(tǒng)的同步方式進(jìn)行了對(duì)比分析,驗(yàn)證了基于混合復(fù)制方式的同步復(fù)制機(jī)制在通信量的控制和運(yùn)行效率上具有一定的優(yōu)越性。
[Abstract]:In recent years, with the rapid development of communication technology and Internet technology, as well as the rapid update of portable devices such as PDAs, laptops, smart phones, mobile database technology has been widely used. At the same time, there are many new problems, among which how to ensure the consistency of data in the process of synchronous replication is the focus of research. To solve this problem, this paper starts with cache technology, adopts dynamic management strategy based on data classification and priority to control the contents of cache. The characteristics of network connection between disconnected state and set state are studied and analyzed. A synchronous replication mechanism based on hybrid replication is proposed, that is, the synchronization mechanism of inert replication and master-slave replication and peer-to-peer replication is adopted to ensure the consistency of data. To solve the problem of data conflict in synchronization process, different coordination and rollback strategies are used to resolve the conflict according to different conflict types. Based on the research and analysis of the data cache technology, the function and workflow of each part of the mixed synchronous replication module are designed and described in detail. Finally, the performance of the synchronization mechanism is tested through experiments. Compared with the traditional synchronization mode, it is proved that the synchronous replication mechanism based on hybrid replication has some advantages in traffic control and operation efficiency.
【學(xué)位授予單位】：長(zhǎng)春理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TP311.13;TP368.1

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 者敬;開(kāi)放式異構(gòu)數(shù)據(jù)庫(kù)復(fù)制框架的研究與實(shí)現(xiàn)[D];中國(guó)科學(xué)院研究生院（軟件研究所）;2002年

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本文編號(hào)：1969463