Data Replication
Data Replication

Author: Marie Buretta

Publisher:

Published: 1997-03-10

Total Pages: 388

ISBN-13:

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For enterprise-wide data replication that works, you'll find the right tools for the right job--right here Data Replication: Tools and Techniques for Managing Distributed Information is a step-by-step guide to replicated data implementation, covering everything from technologies and terms to design approaches used by major vendors like IBM and Sybase to the latest in alternative design strategies. Here's everything on selecting the right set of replication tools and designing and building databases that work effectively with these tools. In addition, the book provides: * Clear data distribution methodology and tips and techniques for designing databases that use replication efficiently * A work plan for building an in-house framework for replication * An application developer's work plan for implementing replication * Highlighted "Tips" and "Warnings" and a Decision * Tree that offers easy selection of the best replication alternatives * Concepts applicable to both vendor-supplied and in-house solutions * Illustrative case studies on such topics as using replication within the OLAP operational data store, and OLTP and mobile computing environments

Smarter Business: Dynamic Information with IBM InfoSphere Data Replication CDC
Smarter Business: Dynamic Information with IBM InfoSphere Data Replication CDC

Author: Chuck Ballard

Publisher: IBM Redbooks

Published: 2012-03-12

Total Pages: 484

ISBN-13: 0738436372

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To make better informed business decisions, better serve clients, and increase operational efficiencies, you must be aware of changes to key data as they occur. In addition, you must enable the immediate delivery of this information to the people and processes that need to act upon it. This ability to sense and respond to data changes is fundamental to dynamic warehousing, master data management, and many other key initiatives. A major challenge in providing this type of environment is determining how to tie all the independent systems together and process the immense data flow requirements. IBM® InfoSphere® Change Data Capture (InfoSphere CDC) can respond to that challenge, providing programming-free data integration, and eliminating redundant data transfer, to minimize the impact on production systems. In this IBM Redbooks® publication, we show you examples of how InfoSphere CDC can be used to implement integrated systems, to keep those systems updated immediately as changes occur, and to use your existing infrastructure and scale up as your workload grows. InfoSphere CDC can also enhance your investment in other software, such as IBM DataStage® and IBM QualityStage®, IBM InfoSphere Warehouse, and IBM InfoSphere Master Data Management Server, enabling real-time and event-driven processes. Enable the integration of your critical data and make it immediately available as your business needs it.

Replication
Replication

Author: Bernadette Charron-Bost

Publisher: Springer Science & Business Media

Published: 2010-03-02

Total Pages: 298

ISBN-13: 3642112935

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Consistency models for replicated data /Alan D. Fekete and Krithi Ramamritham --Replication techniques for availability /Robbert van Renesse and Rachid Guerraoui --Modular approach to replication for availability /Fernando Pedone and André Schiper --Stumbling over consensus research: misunderstandings and issues /Marcos K. Aguilera --Replicating for performance: case studies /Maarten van Steen and Guillaume Pierre --A history of the virtual synchrony replication model /Ken Birman --From viewstamped replication to byzantine fault tolerance /Barbara Liskov --Implementing trustworthy services using replicated state machines /Fred B. Schneider and Lidong Zhou --State machine replication with Byzantine faults /Christian Cachin --Selected results from the latest decade of quorum systems research /Michael G. Merideth and Michael K. Reiter --From object replication to database replication /Fernando Pedone and André Schiper --Database replication: a tutorial /Dettina Kemme, Ricardo Jiménez-Peris, Marta Patiño-Martínez, and Gustavo Alonso --Practical database replication /Alfrânio Correia Jr. ... [et al.].

InfoSphere Data Replication for DB2 for z/OS and WebSphere Message Queue for z/OS: Performance Lessons
InfoSphere Data Replication for DB2 for z/OS and WebSphere Message Queue for z/OS: Performance Lessons

Author: Miao Zheng

Publisher: IBM Redbooks

Published: 2012-12-22

Total Pages: 66

ISBN-13: 0738450952

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Understanding the impact of workload and database characteristics on the performance of both DB2®, MQ, and the replication process is useful for achieving optimal performance.Although existing applications cannot generally be modified, this knowledge is essential for properly tuning MQ and Q Replication and for developing best practices for future application development and database design. It also helps with estimating performance objectives that take these considerations into account. Performance metrics, such as rows per second, are useful but imperfect. How large is a row? It is intuitively, and correctly, obvious that replicating small DB2 rows, such as 100 bytes long, takes fewer resources and is more efficient than replicating DB2 rows that are tens of thousand bytes long. Larger rows create more work in each component of the replication process. The more bytes there are to read from the DB2 log, makes more bytes to transmit over the network and to update in DB2 at the target. Now, how complex is the table definition? Does DB2 have to maintain several unique indexes each time a row is changed in that table? The same argument applies to transaction size: committing each row change to DB2 as opposed to committing, say, every 500 rows also means more work in each component along the replication process. This RedpaperTM reports results and lessons learned from performance testing at the IBM® laboratories, and it provides configuration and tuning recommendations for DB2, Q Replication, and MQ. The application workload and database characteristics studied include transaction size, table schema complexity, and DB2 data type.

Replication Techniques in Distributed Systems
Replication Techniques in Distributed Systems

Author: Abdelsalam A. Helal

Publisher: Springer Science & Business Media

Published: 2005-12-29

Total Pages: 166

ISBN-13: 0306477963

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Replication Techniques in Distributed Systems organizes and surveys the spectrum of replication protocols and systems that achieve high availability by replicating entities in failure-prone distributed computing environments. The entities discussed in this book vary from passive untyped data objects, to typed and complex objects, to processes and messages. Replication Techniques in Distributed Systems contains definitions and introductory material suitable for a beginner, theoretical foundations and algorithms, an annotated bibliography of commercial and experimental prototype systems, as well as short guides to recommended further readings in specialized subtopics. This book can be used as recommended or required reading in graduate courses in academia, as well as a handbook for designers and implementors of systems that must deal with replication issues in distributed systems.

Handbook of Data Management1999 Edition
Handbook of Data Management1999 Edition

Author: Sanjiv Purba

Publisher: CRC Press

Published: 1999-11-29

Total Pages: 1050

ISBN-13: 9780849398322

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Written by leading industry experts, the Data Management Handbook is a comprehensive, single-volume guide to the most innovative ideas on how to plan, develop, and run a powerful data management function - as well as handle day-to-day operations. The book provides practical, hands-on guidance on the strategic, tactical, and technical aspects of data management, offering an inside look at how leading companies in various industries meet the challenges of moving to a data-sharing environment.

Mobile Computing Principles
Mobile Computing Principles

Author: Reza B'Far

Publisher: Cambridge University Press

Published: 2004-11-01

Total Pages: 884

ISBN-13: 9781139455565

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Written to address technical concerns that mobile developers face regardless of the platform (J2ME, WAP, Windows CE, etc.), this 2005 book explores the differences between mobile and stationary applications and the architectural and software development concepts needed to build a mobile application. Using UML as a tool, Reza B'far guides the developer through the development process, showing how to document the design and implementation of the application. He focuses on general concepts, while using platforms as examples or as possible tools. After introducing UML, XML and derivative tools necessary for developing mobile software applications, B'far shows how to build user interfaces for mobile applications. He covers location sensitivity, wireless connectivity, mobile agents, data synchronization, security, and push-based technologies, and finally homes in on the practical issues of mobile application development including the development cycle for mobile applications, testing mobile applications, architectural concerns, and a case study.

Semantic Web Science and Real-World Applications
Semantic Web Science and Real-World Applications

Author: Lytras, Miltiadis D.

Publisher: IGI Global

Published: 2018-10-26

Total Pages: 415

ISBN-13: 1522571876

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Continual advancements in web technology have highlighted the need for formatted systems that computers can utilize to easily read and sift through the hundreds of thousands of data points across the internet. Therefore, having the most relevant data in the least amount of time to optimize the productivity of users becomes a priority. Semantic Web Science and Real-World Applications provides emerging research exploring the theoretical and practical aspects of semantic web science and real-world applications within the area of big data. Featuring coverage on a broad range of topics such as artificial intelligence, social media monitoring, and microblogging recommendation systems, this book is ideally designed for IT consultants, academics, professionals, and researchers of web science seeking the current developments, requirements and standards, and technology spaces presented across academia and industries.

Reproducibility and Replicability in Science
Reproducibility and Replicability in Science

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2019-10-20

Total Pages: 257

ISBN-13: 0309486165

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One of the pathways by which the scientific community confirms the validity of a new scientific discovery is by repeating the research that produced it. When a scientific effort fails to independently confirm the computations or results of a previous study, some fear that it may be a symptom of a lack of rigor in science, while others argue that such an observed inconsistency can be an important precursor to new discovery. Concerns about reproducibility and replicability have been expressed in both scientific and popular media. As these concerns came to light, Congress requested that the National Academies of Sciences, Engineering, and Medicine conduct a study to assess the extent of issues related to reproducibility and replicability and to offer recommendations for improving rigor and transparency in scientific research. Reproducibility and Replicability in Science defines reproducibility and replicability and examines the factors that may lead to non-reproducibility and non-replicability in research. Unlike the typical expectation of reproducibility between two computations, expectations about replicability are more nuanced, and in some cases a lack of replicability can aid the process of scientific discovery. This report provides recommendations to researchers, academic institutions, journals, and funders on steps they can take to improve reproducibility and replicability in science.

Database and Expert Systems Applications
Database and Expert Systems Applications

Author: Hendrik Decker

Publisher: Springer

Published: 2014-08-20

Total Pages: 507

ISBN-13: 3319100858

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This two volume set LNCS 8644 and LNCS 8645 constitutes the refereed proceedings of the 25th International Conference on Database and Expert Systems Applications, DEXA 2014, held in Munich, Germany, September 1-4, 2014. The 37 revised full papers presented together with 46 short papers, and 2 keynote talks, were carefully reviewed and selected from 159 submissions. The papers discuss a range of topics including: data quality; social web; XML keyword search; skyline queries; graph algorithms; information retrieval; XML; security; semantic web; classification and clustering; queries; social computing; similarity search; ranking; data mining; big data; approximations; privacy; data exchange; data integration; web semantics; repositories; partitioning; and business applications.