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Dissertations / Theses on the topic 'Replication distributed database'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Mathiason, Gunnar. "Virtual Full Replication for Scalable Distributed Real-Time Databases." Doctoral thesis, Linköpings universitet, Institutionen för datavetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-20661.

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A fully replicated distributed real-time database provides high availability and predictable access times, independent of user location, since all the data is available at each node. However, full replication requires that all updates are replicated to every node, resulting in exponential growth of bandwidth and processing demands with the number of nodes and objects added. To eliminate this scalability problem, while retaining the advantages of full replication, this thesis explores Virtual Full Replication (ViFuR); a technique that gives database users a perception of using a fully replicate

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2

Chouk, Mabrouk. "Master-slave replication, failover and distributed recovery in PostgreSQL database." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19689.

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The subject of this thesis is synchronous master-slave database replication, failover and distributed recovery for a cluster of database servers. Our replication solution allows updates on the master, and queries on ail sites. Updates of transactions are sent to ail sites before they are committed on the master. To do this, we take advantage of the semantics of group communication Systems. With failover, there is always a master in the group. Distributed recovery ensures that a site that has been introduced in the System brings its own copy of the database to be consistent with the rest of the

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3

Gu, Xuan. "Selective Data Replication for Distributed Geographical Data Sets." Thesis, University of Canterbury. Computer Science and Software Engineering, 2008. http://hdl.handle.net/10092/2545.

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The main purpose of this research is to incorporate additional higher-level semantics into the existing data replication strategies in such a way that their flexibility and performance can be improved in favour of both data providers and consumers. The resulting approach from this research is referred to as the selective data replication system. With this system, the data that has been updated by a data provider is captured and batched into messages known as update notifications. Once update notifications are received by data consumers, they are used to evaluate so-called update policies, whic

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4

Mathiason, Gunnar. "Segmentation in a Distributed Real-Time Main-Memory Database." Thesis, University of Skövde, Department of Computer Science, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-737.

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<p>To achieve better scalability, a fully replicated, distributed, main-memory database is divided into subparts, called segments. Segments may have individual degrees of redundancy and other properties that can be used for replication control. Segmentation is examined for the opportunity of decreasing replication effort, lower memory requirements and decrease node recovery times. Typical usage scenarios are distributed databases with many nodes where only a small number of the nodes share information. We present a framework for virtual full replication that implements segments with scheduled

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5

Olby, Johan. "Partition Aware Database Replication : A state-update transfer strategy based on PRiDe." Thesis, University of Skövde, School of Humanities and Informatics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-396.

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<p>Distributed real-time databases can be used to support data sharing</p><p>for applications in wireless ad-hoc networks. In such networks, topology changes frequently and partitions may be unpredictable and last for an unbounded period. In this thesis, the existing database replication protocol PRiDe is extended to handle such long-lasting partitions. The protocol uses optimistic and detached replication to provide predictable response times in unpredictable networks and forward conflict resolution to guarantee progress.</p><p>The extension, pPRiDe, combines update and state transfer strateg

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6

Ruiz, Fuertes María Idoia. "On the Consistency, Characterization, Adaptability and Integrity of Database Replication Systems." Doctoral thesis, Universitat Politècnica de València, 2011. http://hdl.handle.net/10251/11800.

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Desde la aparición de las primeras bases de datos distribuidas hasta los actuales sistemas de replicación modernos, la comunidad de investigación ha propuesto múltiples protocolos para administrar la distribución y replicación de datos, junto con algoritmos de control de concurrencia para manejar las transacciones en ejecución en todos los nodos del sistema. Muchos protocolos están disponibles, por tanto, cada uno con diferentes características y rendimiento, y garantizando diferentes niveles de coherencia. Para saber qué protocolo de replicación es el más adecuado, dos aspectos deben se

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7

Milton, Robert. "CORBA in the aspect of replicated distributed real-time databases." Thesis, University of Skövde, Department of Computer Science, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-644.

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<p>A distributed real-time database (DRTDB) is a database distributed over a network on several nodes and where the transactions are associated with deadlines. The issues of concern in this kind of database are data consistency and the ability to meet deadlines. In addition, there is the possibility that the nodes, on which the database is distributed, are heterogeneous. This means that the nodes may be built on different platforms and written in different languages. This makes the integration of these nodes difficult, since data types may be represented differently on different nodes. The com

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8

Ковальчук, Б. В. "Можливості технології Blockchain". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/66875.

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У сучасному світі проходить масова електронізація та автоматизація більшості сфер народного господарства, інформаційні технології впроваджуються у найрізноманітніші процеси в управлінні, виробництві, економіці та комерції. Оцифрування ключових сфер діяльності людини вимагає надійних технологій захисту, обробки та зберігання інформації, такі можливості надає технологія blockchain.

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9

Solat, Siamak. "Novel fault-tolerant, self-configurable, scalable, secure, decentralized, and high-performance distributed database replication architecture using innovative sharding to enable the use of BFT consensus mechanisms in very large-scale networks." Electronic Thesis or Diss., Université Paris Cité, 2023. http://www.theses.fr/2023UNIP7025.

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Cette thèse de doctorat se compose de 6 chapitres. Dans le premier chapitre, en guise d'introduction, nous donnons un aperçu des objectifs généraux et des motivations des réseaux décentralisés et permissionless, ainsi que des obstacles auxquels ils sont confrontés. Dans l'introduction, nous évoquons également la solution irrationnelle et illogique, connue sous le nom de « blockchain permissioned », qui a été proposée pour améliorer les performances des réseaux similaires à Bitcoin. Cette question a été détaillée au chapitre 5. Dans le chapitre 2, nous rendons clairs et intelligibles les systèm

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10

Xiong, Fanfan. "Resource Efficient Parallel VLDB with Customizable Degree of Redundancy." Diss., Temple University Libraries, 2009. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/43445.

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Computer and Information Science<br>Ph.D.<br>This thesis focuses on the practical use of very large scale relational databases. It leverages two recent breakthroughs in parallel and distributed computing: a) synchronous transaction replication technologies by Justin Y. Shi and Suntain Song; and b) Stateless Parallel Processing principle pioneered by Justin Y. Shi. These breakthroughs enable scalable performance and reliability of database service using multiple redundant shared-nothing database servers. This thesis presents a Functional Horizontal Partitioning method with customizable degree o

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11

Артюх, О. О. "Технологія реплікації баз даних в розподіленій бібліотечно-інформаційній системі". Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/23354.

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Артюх, О. О. Технологія реплікації баз даних в розподіленій бібліотечно-інформаційній системі : випускна кваліфікаційна робота : 123 "Комп’ютерна інженерія" / О. О. Артюх ; керівник роботи В. В. Казимир ; НУ "Чернігівська політехніка", кафедра інформаційних і комп’ютерних систем. – Чернігів, 2020. – 96 с.<br>Об’єктом розробки виступає технологія реплікації баз даних у розподіленій бібліотечно інформаційній системі. Мета роботи полягає у дослідженні технології доступу від джерела даних - автоматизованої бібліотечно-інформаційної системи (АБІС) до клієнта - електронного каталогу. Наукова новиз

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12

Muessig, Mikael. "Bounded Delay Replication in Distributed Databases with Eventual Consistency." Thesis, University of Skövde, Department of Computer Science, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-830.

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<p>Distributed real-time database systems demand consistency and timeliness. One approach for this problem is eventual consistency which guarantees local consistency within predictable time. Global consistency can be reached by best effort mechanisms but for some scenarios, e.g. an alarm signal, this may not be suffcient. Bounded delay replication, which provides global consistency in bounded time, ensures that after the local commit of a transaction updates are propagated to and integrated at any remote node within bounded time. The DRTS group at the University of Skövde is working on a proje

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13

Syberfeldt, Sanny. "Optimistic Replication with Forward Conflict Resolution in Distributed Real-Time Databases." Doctoral thesis, Linköping : Department of Computer and Information Science, Linköpings universitet, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10317.

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14

Mends, Diana. "Access Control and Storage of Distributed IoT Data." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37356.

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There has been a growth of a class of databases known as the Not only SQL (NoSQL) databases in recent years. Its quick growth has been fueled by a high demand by businesses as it offers a convenient way to store data and is significantly different from our traditional relational databases. It is easy to process unstructured data, offers a cloud-friendly ap- proach and grows through the distribution of data over lots of commodity computers. Most of these NoSQL databases are distributed in several different locations, spanning countries and are known as geo-distributed cloud datastores. We work

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15

Zhuo, Ling, and 卓玲. "Document replication and distribution algorithms for load balancing ingeographically distributed web server systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31228148.

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16

Pandey, Utkarsh. "Optimizing Distributed Transactions: Speculative Client Execution, Certified Serializability, and High Performance Run-Time." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/72867.

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On-line services already form an important part of modern life with an immense potential for growth. Most of these services are supported by transactional systems, which are backed by database management systems (DBMS) in many cases. Many on-line services use replication to ensure high-availability, fault tolerance and scalability. Replicated systems typically consist of different nodes running the service co-ordinated by a distributed algorithm which aims to drive all the nodes along the same sequence of states by providing a total order to their operations. Thus optimization of both local DB

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17

Zemblys, Tomas. "Paskirstytų duomenų bazių replikavimo komponentas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050105_104639-30367.

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Many organizations use relational databases (RDB) at this time. These databases can be different producers (Oracle, MS SQL Server and etc.), operate different operating systems and use different software. But the main problem if organizations want collaborate they must exchange data between them. Sometimes if they use different data structures exchange data between them is very hard or impossible. If they want integrate different databases they must use general standard. This standard must be adjustable for different databases. One of the general standards is XML. The main purpose of this proj

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18

Bernabe, Gisbert Jose Maria. "SUPPORTING MULTIPLE ISOLATION LEVELS IN REPLICATED ENVIRONMENTS." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/36535.

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La replicación de bases de datos aporta fiabilidad y escalabilidad aunque hacerlo de forma transparente no es una tarea sencilla. Una base de datos replicada es transparente si puede reemplazar a una base de datos centralizada tradicional sin que sea necesario adaptar el resto de componentes del sistema. La transparencia en bases de datos replicadas puede obtenerse siempre que (a) la gestión de la replicación quede totalmente oculta a dichos componentes y (b) se ofrezca la misma funcionalidad que en una base de datos tradicional. Para mejorar el rendimiento general del sistema, los gest

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19

Salvanha, Pablo. "Modelo para análise de desempenho do processo de replicação de dados em portais de biodiversidade." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-11082010-161042/.

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Atualmente muitas instituições mantêm coleções de espécimes biológicas, e através de ferramentas computacionais digitalizam e disponibilizam seus dados para acesso através de portais de dados de biodiversidade. Um exemplo deste tipo de ferramenta é o portal de espécimes utilizado pelo GBIF (Global Biodiversity Information Facility), que centraliza em suas bases de dados milhões de registros, provenientes de instituições de diferentes localizações. A replicação das bases de dados locais nos portais é realizada através da utilização de protocolos (DiGIR / TAPIR) e esquemas de dados (DarwinCore).

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20

Zheng, Zheng 1977. "URA : a universal data replication architecture." 2008. http://hdl.handle.net/2152/17842.

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Data replication is a key building block for large-scale distributed systems to improve availability, performance, and scalability. Because there is a fundamental trade-off between performance and consistency as well as between availability and consistency, systems must make trade-offs among these factors based on the demands and technologies of their target environments and workloads. Unfortunately, existing replication protocols and mechanisms are intrinsically entangled with specific policy assumptions. Therefore, to accommodate new trade-offs for new policy requirements, developers have to

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21

Cheng, Chieh-Hsun, and 鄭介勛. "Design and Implementation of Replication Strategy with Dynamic Load Balancing Technology in Distributed Database Environment." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/74383559452241592392.

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碩士<br>靜宜大學<br>資訊工程學系碩士班<br>98<br>Computer Information System has been fully adapted in all business lately. There is plenty of analysis being necessary for great amount of data. Such an environment made databases system the most important part in the whole Computer Information System. This result in sufficiently more processing power is needed for database system. A single super server to handle everything has been replaced by a group of servers working together to share the load. This research uses the MySQL database replication with dynamic load balancing topologies to achieve the database p

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(11132985), Thamir Qadah. "High-performant, Replicated, Queue-oriented Transaction Processing Systems on Modern Computing Infrastructures." Thesis, 2021.

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With the shifting landscape of computing hardware architectures and the emergence of new computing environments (e.g., large main-memory systems, hundreds of CPUs, distributed and virtualized cloud-based resources), state-of-the-art designs of transaction processing systems that rely on conventional wisdom suffer from lost performance optimization opportunities. This dissertation challenges conventional wisdom to rethink the design and implementation of transaction processing systems for modern computing environments.<div><br></div><div>We start by tackling the vertical hardware sca

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23

Постолюк, Андрій Миколайович. "Методи та засоби синхронізації баз даних із врахуванням цінності інформації". Master's thesis, 2019. http://elartu.tntu.edu.ua/handle/lib/30631.

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Дипломна робота присвячена дослідженню інформаційно-вимірювальної системи для моніторингу технічних і експлуатаційних характеристик мереж мобільного зв’язку другого і третього покоління. В першому розділі дипломної роботи досліджено особливості організації розподілених баз даних, способи виявлення змін, імітаційне моделювання при визначенні цінності інформації та постановлено задачі дослідження. В другому розділі розглянуто проблематику реплікації систем розподілених баз даних, основні принципи встановлення з’єднання при реплікації, синхронізація та реплікація баз даних а також імовірнісне вия

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