Service Availability

Principles and Practice
Herausgegeben von Toeroe, Maria; Tam, Francis

• Gebundenes Buch

Produktbeschreibung

Our society increasingly depends on computer-based systems; the number of applications deployed has increased dramatically in recent years and this trend is accelerating. Many of these applications are expected to provide their services continuously. The Service Availability Forum has recognized this need and developed a set of specifications to help software designers and developers to focus on the value added function of applications, leaving the availability management functions for the middleware.

A practical and informative reference for the Service Availability Forum specifications, this book gives a cohesive explanation of the founding principles, motivation behind the design of the specifications, and the solutions, usage scenarios and limitations that a final system may have. Avoiding complex mathematical explanations, the book takes a pragmatic approach by discussing issues that are as close as possible to the daily software design/development by practitioners, and yet at a level that still takes in the overall picture. As a result, practitioners will be able to use the specifications as intended.
Takes a practical approach, giving guidance on the use of the specifications to explain the architecture, redundancy models and dependencies of the Service Availability (SA) Forum services
Explains how service availability provides fault tolerance at the service level
Clarifies how the SA Forum solution is supported by open source implementations of the middleware
Includes fragments of code, simple example and use cases to give readers a practical understanding of the topic
Provides a stepping stone for applications and system designers, developers and advanced students to help them understand and use the specifications

Produktdetails

• Verlag: Wiley & Sons
• 1. Auflage
• Seitenzahl: 476
• Erscheinungstermin: 29. Mai 2012
• Englisch
• Abmessung: 251mm x 175mm x 28mm
• Gewicht: 890g
• ISBN-13: 9781119954088
• ISBN-10: 1119954088
• Artikelnr.: 35061128

Autorenporträt

Maria Toeroe, Ericsson, Canada Maria Toeroe has been in the telecommunications industry for over 10 years conducting research and standardisation in the area of dependable software, service availability and fault tolerance utilizing the expertise she gained in her prior work in the academia related to formal description techniques and their use in protocol engineering. Having represented Ericsson in the Service Availability Forum since 2005, Maria has led several standardization efforts in different chair positions of the SA Forum Technical Work Group.? Within Ericsson she is also responsible for university collaborations related to her fields. She has been an Adjunct Associate Professor with the Department of Electrical and Computer Engineering of Concordia University since 2007. Maria holds a Diploma degree from the Institute of Engineering Economics Kharkov, a University Doctorate and a PhD from the Faculty of Electrical Engineering and Informatics of the Budapest University of Technology and Economics. Francis Tam, Nokia, Finland Francis Tam has conducted research, development and standardisation in the dependable software area of service availability and fault tolerance in the telecommunications industry for more than 16 years. He has served as industrial adviser to three European Commission funded projects on dependable computer systems and frequently gives lectures on highly available systems to the Master of Engineering students at INSA Lyon in France. Francis holds a BSc in Computer Science from Queen Mary College (University of London), an MSc in Computing Science from North Staffordshire Polytechnic and a Doctor of Science (Technology) in Software Systems from Tampere University of Technology in Finland.

Inhaltsangabe

List of Contributors xiii Foreword xv Preface xix Acknowledgments xxv List
of Abbreviations xxvii Part I INTRODUCTION TO SERVICE AVAILABILITY 1
Definitions, Concepts, and Principles 3 Francis Tam 1.1 Introduction 3 1.2
Why Service Availability? 4 1.3 Service Availability Fundamentals 6 1.4
Achieving Service Availability 13 1.5 Conclusion 20 2 The Birth of the
Service Availability Forum 23 Francis Tam 2.1 Introduction 23 2.2
Technology Environment 23 2.3 Business Environment 24 2.4 The Service
Availability Forum Era 27 2.5 Concluding Remarks 28 Part II THE SA FORUM
SYSTEM: SERVICES AND FRAMEWORKS 3 Overview of the Service Availability
Architecture 33 Dave Penkler 3.1 Introduction 33 3.2 HA Concepts Applied 39
3.3 Architecture 43 3.4 Open Issues 59 3.5 Conclusion 62 4 The SA Forum
Information Model: The Heart of Control and Monitoring 63 Maria Toeroe 4.1
Introduction 63 4.2 Background 64 4.3 The SA Forum Information Model 67 4.4
Conclusion 83 5 Consistent and High Level Platform View 85 Maria Toeroe 5.1
Introduction 85 5.2 Hardware Platform Interface 86 5.3 Platform Management
Service 96 5.4 Cluster Membership Service 121 5.5 Conclusion 131 6 Model
Based Availability Management: The Availability Management Framework 133
Maria Toeroe 6.1 Introduction 133 6.2 Background 134 6.3 The Availability
Management Framework 138 6.4 Conclusion 191 7 Communication and
Synchronization Utilities 193 Maria Toeroe and Sayandeb Saha 7.1
Introduction 193 7.2 Event Service 194 7.3 Message Service 202 7.4
Checkpoint Service 212 7.5 Conclusion 223 8 Services Needed for System
Management 227 Maria Toeroe 8.1 Introduction 227 8.2 Log Service 228 8.3
Notification Service 236 8.4 Information Model Management Service 247 8.5
Conclusion 262 9 Model-Based Software Management: The Software Management
Framework 265 Maria Toeroe 9.1 Introduction 265 9.2 Background 266 9.3
Software Management a la Carte 268 9.4 Conclusion 294 10 Combining the
Services 297 Maria Toeroe 10.1 Introduction 297 10.2 Application Design and
Development 297 10.3 Application Platform Design 299 10.4 Operation and
Maintenance 301 Part III SA FORUM MIDDLEWARE IN ACTION 11 SA Forum
Programming Model and API Conventions 305 Francis Tam 11.1 Introduction 305
11.2 Programming Model 306 11.3 Making Sense of the API Specifications 312
11.4 Practical Topics 316 11.5 Concluding Remarks 322 12 SA Forum Java
Mappings: Specifications, Usage, and Experience 325 Robert Hyerle and Jens
Jensen 12.1 Introduction 325 12.2 Background 325 12.3 Understanding the
Java Mappings 328 12.4 Using the Java Mappings 335 12.5 Going Further 343
13 SA Forum Middleware Implementations 347 Mario Angelic and Ulrich Kleber
13.1 Introduction 347 13.2 The OpenHPI Project 348 13.3 The OpenSAF Project
355 13.4 Conclusion 368 14 Integration of the VideoLAN Client with OpenSAF:
An Example 371 Anik Mishra and Ali Kanso 14.1 Introduction 371 14.2 Going
Under the Hood: The VLC Workflow 372 14.3 Integrating VLC with OpenSAF 373
14.4 Summary and Conclusion 387 15 Migration Paths for Legacy Applications
391 Mario Angelic 15.1 Introduction 391 15.2 Reasons for Migration 392 15.3
Integration Criteria 393 15.4 How to Migrate 399 15.5 Open Issues 413 15.6
Conclusion 413 16 Overcoming Complexity: Formal Modeling Techniques at the
Rescue 415 Maria Toeroe and Ferhat Khendek 16.1 Introduction 415 16.2
Background 416 16.3 Model-Based Software Management 419 16.4 Conclusion 428
17 Conclusion 431 17.1 Summary 431 17.2 The Future 433 References 435 Index
443