Time-Constrained Transaction Management: Real-Time Constraints in Database Trans

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Time-Constrained Transaction Management by Nandit R. Soparkar, Henry F. Korth, Abraham Silberschatz

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.

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Paperback LANGUAGE
English CONDITION
Brand New Publisher 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.

Notes

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Table of Contents

1 Introduction.- 1.1 Traditional Transactions.- 1.2 Temporal Considerations.- 1.3 Related Work.- 1.4 Overview.- 2 A Model.- 2.1 Centralized Environments.- 2.2 Distributed Executions.- 3 Centralized Scheduling.- 3.1 Performance Metrics.- 3.2 Traditional Scheduling.- 3.3 Optimization in Scheduling.- 3.4 Countering Intractability.- 3.5 Uncertainty in Scheduling.- 4 Distributed Scheduling.- 4.1 Integrating Local Executions.- 4.2 A Synchronization Protocol.- 4.3 Restrictions on Executions.- 4.4 Other Integration Issues.- 4.5 Global Atomic Commitment.- 5 Semantics in Scheduling.- 5.1 Adaptive Commitment.- 5.2 Data-value Partitioning.- 6 Conclusions.- 6.1 Issues in I/O.- 6.2 Scheduling Online.- 6.3 Wider Applicability.- 6.4 In Summary.- References.

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Long Description

Transaction processing is an established technique for the concurrent and fault

Details ISBN1461286158 Author Abraham Silberschatz Short Title TIME-CONSTRAINED TRANSACTION M Series Advances in Database Systems Language English ISBN-10 1461286158 ISBN-13 9781461286158 Media Book Format Paperback DEWEY 005.74 Series Number 2 Year 2011 Publication Date 2011-09-27 Imprint Springer-Verlag New York Inc. Place of Publication New York, NY Country of Publication United States Pages 148 Illustrations X, 148 p. Subtitle Real-Time Constraints in Database Transaction Systems DOI 10.1007/978-1-4613-1417-2 AU Release Date 2011-09-27 NZ Release Date 2011-09-27 US Release Date 2011-09-27 UK Release Date 2011-09-27 Publisher Springer-Verlag New York Inc. Edition Description Softcover reprint of the original 1st ed. 1996 Alternative 9780792397526 Audience Professional & Vocational Country of Origin NL Product Class Description Computing: Professional & Programming
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