Service Quality of Cloud-Based Applications

Eric Bauer 지음

Wiley-IEEE Press 2013년 11월 14일 출간

작품소개

책소개

This book explains why applications running on cloud might not deliver the same service reliability, availability, latency and overall quality to end users as they do when the applications are running on traditional (non-virtualized, non-cloud) configurations, and explains what can be done to mitigate that risk.

목차

Figures xvTables and Equations xxi1 INTRODUCTION 11.1 Approach 11.2 Target Audience 31.3 Organization 3I CONTEXT 72 APPLICATION SERVICE QUALITY 92.1 Simple Application Model 92.2 Service Boundaries 112.3 Key Quality and Performance Indicators 122.4 Key Application Characteristics 152.5 Application Service Quality Metrics 172.6 Technical Service versus Support Service 272.7 Security Considerations 283 CLOUD MODEL 293.1 Roles in Cloud Computing 303.2 Cloud Service Models 303.3 Cloud Essential Characteristics 313.4 Simplifi ed Cloud Architecture 333.5 Elasticity Measurements 363.6 Regions and Zones 443.7 Cloud Awareness 454 VIRTUALIZED INFRASTRUCTURE IMPAIRMENTS 494.1 Service Latency, Virtualization, and the Cloud 504.2 VM Failure 544.3 Nondelivery of Configured VM Capacity 544.4 Delivery of Degraded VM Capacity 574.5 Tail Latency 594.6 Clock Event Jitter 604.7 Clock Drift 614.8 Failed or Slow Allocation and Startup of VM Instance 624.9 Outlook for Virtualized Infrastructure Impairments 63II ANALYSIS 655 APPLICATION REDUNDANCY AND CLOUD COMPUTING 675.1 Failures, Availability, and Simplex Architectures 685.2 Improving Software Repair Times via Virtualization 705.3 Improving Infrastructure Repair Times via Virtualization 725.4 Redundancy and Recoverability 755.5 Sequential Redundancy and Concurrent Redundancy 805.6 Application Service Impact of Virtualization Impairments 845.7 Data Redundancy 905.8 Discussion 926 LOAD DISTRIBUTION AND BALANCING 976.1 Load Distribution Mechanisms 976.2 Load Distribution Strategies 996.3 Proxy Load Balancers 996.4 Nonproxy Load Distribution 1016.5 Hierarchy o

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저자(글) Eric Bauer

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ERIC BAUER, MS, is Reliability Engineering Manager in the IP Platforms CTO of Alcatel-Lucent. The holder of more than a dozen U.S. patents, Mr. Bauer is the author or coauthor of Reliability and Availability of Cloud Computing, Beyond Redundancy: How Geographic Redundancy Can Improve Service Availability and Reliability of Computer-Based Systems, Design for Reliability: Information and Computer-Based Systems, and Practical System Reliability. RANDEE ADAMS, MS, is a Consulting Member of the Technical Staff in the IP Platforms CTO of Alcatel-Lucent. She is the coauthor of Beyond Redundancy: How Geographic Redundancy Can Improve Service Availability and Reliability of Computer-Based Systems and Reliability and Availability of Cloud Computing. Ms. Adams has worked on many projects, including software development, delivery, engineering, architecture, and design.