Time-Constrained Transaction Management PDF Download

Author: Nandit R. Soparkar
Publisher: Springer Science & Business Media
ISBN: 1461314178
Category : Computers
Languages : en
Pages : 155

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Book Description
Transaction processing is an established technique for the concurrent and fault tolerant access of persistent data. While this technique has been successful in standard database systems, factors such as time-critical applications, emerg ing technologies, and a re-examination of existing systems suggest that the performance, functionality and applicability of transactions may be substan tially enhanced if temporal considerations are taken into account. That is, transactions should not only execute in a "legal" (i.e., logically correct) man ner, but they should meet certain constraints with regard to their invocation and completion times. Typically, these logical and temporal constraints are application-dependent, and we address some fundamental issues for the man agement of transactions in the presence of such constraints. Our model for transaction-processing is based on extensions to established mod els, and we briefly outline how logical and temporal constraints may be ex pressed in it. For scheduling the transactions, we describe how legal schedules differ from one another in terms of meeting the temporal constraints. Exist ing scheduling mechanisms do not differentiate among legal schedules, and are thereby inadequate with regard to meeting temporal constraints. This provides the basis for seeking scheduling strategies that attempt to meet the temporal constraints while continuing to produce legal schedules.

Author: Nandit Ramesh Soparkar
Publisher:
ISBN:
Category : Database management
Languages : en
Pages : 604

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Author: University of Texas at Austin. Dept. of Computer Sciences
Publisher:
ISBN:
Category : Database management
Languages : en
Pages : 39

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Book Description
Abstract: "Time-constrained transaction management incorporates temporal considerations into the transaction and scheduling model. In such a model, transactions are expected to meet certain time constraints with respect to their invocation and execution times. Most existing research deals with the performance evaluation aspect of deadline-based transaction executions using ad hoc heuristics. This paper presents a model on which to base the scheduling and correctness criteria for time-constrained transaction management in a centralized computing environment. Our model permits a rigorous study of the scheduling problems that arise when temporal factors are explicitly taken into account. We present some of our research results for scheduling, and discuss several relevant issues regarding the domain of time-constrained transaction management."

Author: Jayant R. Haritsa
Publisher:
ISBN:
Category : Databases
Languages : en
Pages : 416

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Book Description
In summary, this thesis sheds light on issues involved in real- time transaction scheduling, and presents new scheduling algorithms that come closer to meeting the challenges of the real-time domain."

Author: Christian Rodiek
Publisher: GRIN Verlag
ISBN: 3638606635
Category : Business & Economics
Languages : en
Pages : 10

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Book Description
Essay from the year 2006 in the subject Business economics - Information Management, grade: A+, Western Illinois University, course: Management of Information Technology, language: English, abstract: This report will discuss problems and solutions to transaction processing (TP) systems. A brief introduction to the issue by defining and describing a transaction and a TP system is to give here before beginning with the core discussion. A transaction in general implants changes made in the real world in a physical database [1]. There-fore business transactions are multiple basic operations involving exchanges (cash, credit, informa-tion) that have financial implications, such as customer placing an order or someone paying parking tickets and they establish a connection between an organization and its database [3]. A TP system is a form of data base management system that processes business transactions [1]. Usually there exit several different systems in one organization. Examples of TP applications are payroll, inventory, order processing, reservations, account processing in banks, and stock trading [3]. Considering the highly increased volume of transactions processed by organizations due to the credit card revolution and the Internet and their need to process the transactions in a timely fashion there arise several problems and performance constraints to the transaction processing and its systems, which need to be addressed. To identify a certain performance of a TP system the Input/Output (I/O) of a system is a adequate measure. In the following it will be assumed that the organizations already provide of Transaction Processing Facilities (TPF), that Main Memory Database Systems (MMDS) are not practical, that most TP sys-tems are already distributed [i.e. that the organization have implemented a Distributed Database Management System (DDMS)] and finally that the organizations have the fastest available comput-ers & networks already installed.

Author: Kam-Yiu Lam
Publisher: Springer Science & Business Media
ISBN: 030646988X
Category : Computers
Languages : en
Pages : 289

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Book Description
In recent years, tremendous research has been devoted to the design of database systems for real-time applications, called real-time database systems (RTDBS), where transactions are associated with deadlines on their completion times, and some of the data objects in the database are associated with temporal constraints on their validity. Examples of important applications of RTDBS include stock trading systems, navigation systems and computer integrated manufacturing. Different transaction scheduling algorithms and concurrency control protocols have been proposed to satisfy transaction timing data temporal constraints. Other design issues important to the performance of a RTDBS are buffer management, index accesses and I/O scheduling. Real-Time Database Systems: Architecture and Techniques summarizes important research results in this area, and serves as an excellent reference for practitioners, researchers and educators of real-time systems and database systems.

Author: Shanker, Udai
Publisher: IGI Global
ISBN: 1799824934
Category : Computers
Languages : en
Pages : 338

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Book Description
In the computer science industry, high levels of performance remain the focal point in software engineering. This quest has made current systems exceedingly complex, as practitioners strive to discover novel approaches to increase the capabilities of modern computer structures. A prevalent area of research in recent years is scalable transaction processing and its usage in large databases and cloud computing. Despite its popularity, there remains a need for significant research in the understanding of scalability and its performance within distributed databases. Handling Priority Inversion in Time-Constrained Distributed Databases provides emerging research exploring the theoretical and practical aspects of database transaction processing frameworks and improving their performance using modern technologies and algorithms. Featuring coverage on a broad range of topics such as consistency mechanisms, real-time systems, and replica management, this book is ideally designed for IT professionals, computing specialists, developers, researchers, data engineers, executives, academics, and students seeking research on current trends and developments in distributed computing and databases.

Author: Rolf A. de by
Publisher: Springer Science & Business Media
ISBN: 1461556791
Category : Computers
Languages : en
Pages : 231

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Book Description
Transaction Management Support for Cooperative Application is a comprehensive report on a successful international project, called TRANSCOOP, carried out from 1994 to 1997 by a group of European scientists. But the book is also much more than that, namely, an ambitious attempt to integrate Computer-Supported Cooperative Work (CSCW), Workflow Management Systems (WFMS), and Transaction Processing (TP) technologies. The very term {\em cooperative transactions} is in itself contradictory. Cooperation technologies, such as CSCW, aim at providing a framework for information exchange between cooperating (human) participants. In contrast, traditional transaction technologies allow concurrent users to operate on shared data, while providing them with the illusion of complete isolation from each other. To overcome this contradiction, the TRANSCOOP researchers had to come up with a new and original notion of correctness of concurrent executions, based on controlled exchange of information between concurrent users. Merging histories in accordance with prespecified commutativity rules among concurrent operations provides transactional guarantees to activities such as cooperative designing, which until now had to be carried out sequentially. As an interesting consequence, it also provides a basis for management of consistency between disconnected or mobile users who operate independently and yet, must occasionally reconcile their work with each other.

Author: Vijay Atluri
Publisher: Springer
ISBN:
Category : Business & Economics
Languages : en
Pages : 152

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Book Description
The book covers state-of-the-art research in developing secure transaction processing for popular MLS DBMS architectures, such as kernelized, replicated, and distributed architectures and advanced transaction models such as workflows, long duration and nested models. Further, it explores the technical challenges that require future attention."--BOOK JACKET.

Author: Donald Fussell
Publisher: Springer Science & Business Media
ISBN: 1461522714
Category : Computers
Languages : en
Pages : 283

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Book Description
Responsive Computer Systems: Steps Towards Fault-Tolerant Real-Time Systems provides an extensive treatment of the most important issues in the design of modern Responsive Computer Systems. It lays the groundwork for a more comprehensive model that allows critical design issues to be treated in ways that more traditional disciplines of computer research have inhibited. It breaks important ground in the development of a fruitful, modern perspective on computer systems as they are currently developing and as they may be expected to develop over the next decade. Audience: An interesting and important road map to some of the most important emerging issues in computing, suitable as a secondary text for graduate level courses on responsive computer systems and as a reference for industrial practitioners.