Description:

Table of Contents

Chapter 1: Introducing the Cloud Computing Platform ............................................. 1

Cloud and Platform ....................................................................................................................... 1

Relevance of the Cloud Platform ................................................................................................... 2

Cloud Platform Benefits ................................................................................................................ 3

Your Application and Cloud Platform Matchup .............................................................................. 3

Does Your Application Belong on the Cloud Platform? ............................................................ 3

Is the Cloud Platform Ready for Your Enterprise-Class Application? ....................................... 4

On-premises and Cloud Platform Integration ................................................................................ 5

Heterogeneity of the Cloud Platform ............................................................................................. 6

Trust and Security ......................................................................................................................... 6

Cloud Platform Services ................................................................................................................ 7

Compute Services ................................................................................................................... 9

Networking ............................................................................................................................ 18

Storage and Data Services .................................................................................................... 23

App Services .......................................................................................................................... 33

Summary .................................................................................................................................... 41

About the Authors .................................................................................................... xi

About the Technical Reviewer ............................................................................... xiii

Acknowledgments ...................................................................................................xv

Foreword ...............................................................................................................xvii

Additional Foreword ...............................................................................................xix

Introduction ............................................................................................................xxi

vi

Chapter 2: Cloud Applications ................................................................................ 43

Cloud Application Platforms ........................................................................................................ 43

What’s aaS? ........................................................................................................................... 43

Platform Types ....................................................................................................................... 45

Infrastructure as a Service (IaaS) .......................................................................................... 49

Platform as a Service (PaaS) ................................................................................................. 50

Software as a Service (SaaS) ................................................................................................ 53

Other Cloud Application Platforms .............................................................................................. 55

Cloud Web Services ............................................................................................................... 55

Cloud Managed Services ....................................................................................................... 56

Cloud Application Deployment Models ........................................................................................ 56

Public Cloud ........................................................................................................................... 56

Private Cloud ......................................................................................................................... 57

Hybrid Cloud .......................................................................................................................... 58

Summary .................................................................................................................................... 59

Chapter 3: Hardened Cloud Applications ................................................................ 61

Hardened Applications ................................................................................................................ 61

Hello World vs. Real-World? ........................................................................................................ 62

Real-World and Hardened Applications ...................................................................................... 63

Availability ............................................................................................................................. 64

Reliability ............................................................................................................................... 69

Scalability .............................................................................................................................. 71

Recoverability ........................................................................................................................ 73

Security ................................................................................................................................. 75

Low Latency .......................................................................................................................... 78

Modern Organization ................................................................................................................... 79

Engineering ........................................................................................................................... 79

Support .................................................................................................................................. 86

Summary .................................................................................................................................... 87

Table of Contents

vii

Chapter 4: Service Fundamentals: Instrumentation, Telemetry,

and Monitoring ....................................................................................................... 89

Instrumentation ........................................................................................................................... 90

Best Practices for Designing Instrumentation ....................................................................... 90

High-Value and High-Volume Data ........................................................................................ 92

Event Tracing ......................................................................................................................... 93

Azure Diagnostics .................................................................................................................. 95

Telemetry .................................................................................................................................... 96

Best Practices for Designing Telemetry ................................................................................. 96

Monitoring ................................................................................................................................... 98

Typical Monitoring Solutions (Azure Network Watcher) ......................................................... 99

Best Practices for Designing Monitoring ............................................................................. 102

Vendor and Third-Party Solutions ............................................................................................. 118

Summary .................................................................................................................................. 122

Chapter 5: Key Application Experiences: Latency, Scalability,

and Throughput .................................................................................................... 123

Latency ..................................................................................................................................... 123

Factors That Affect Latency ................................................................................................. 124

Best Practices ...................................................................................................................... 124

Scalability ................................................................................................................................. 130

Scaling Up ........................................................................................................................... 130

Scaling Out .......................................................................................................................... 131

Best Practices ...................................................................................................................... 132

Throughput ................................................................................................................................ 137

Best Practices ...................................................................................................................... 137

Summary .................................................................................................................................. 139

Table of Contents

viii

Chapter 6: Failures and Their Inevitability ........................................................... 141

Case Studies of Major Cloud Service Failures .......................................................................... 142

Azure Storage Server Failure ............................................................................................... 142

Amazon Web Services Failure ............................................................................................. 143

Measuring Failures ................................................................................................................... 143

Failure Categories ..................................................................................................................... 145

Hard Failure ......................................................................................................................... 145

Soft Failure .......................................................................................................................... 146

Gray Failure ......................................................................................................................... 146

Preparing for Failure ................................................................................................................. 148

Design for Failure and a Quick Recovery ............................................................................ 149

Minimizing Human Error ...................................................................................................... 150

Summary .................................................................................................................................. 153

Chapter 7: Failures and Recovery ......................................................................... 155

Design Best Practices ............................................................................................................... 156

Failure Domain .................................................................................................................... 156

Loose Coupling .................................................................................................................... 158

Scale Out to More for Less .................................................................................................. 158

Testing Best Practices ............................................................................................................... 160

Sandboxing .......................................................................................................................... 161

Scenario Testing .................................................................................................................. 164

Failure-Detection Strategies ..................................................................................................... 165

IaaS Virtual Infrastructure .................................................................................................... 165

PaaS Application .................................................................................................................. 167

Databases ............................................................................................................................ 167

Storage ................................................................................................................................ 168

Network ............................................................................................................................... 168

Strategies for Recovery ............................................................................................................ 168

Dev-Test-Ops Organization .................................................................................................. 169

Remote Script Execution ..................................................................................................... 171

Summary .................................................................................................................................. 172

Table of Contents

ix

Chapter 8: High Availability, Scalability, and Disaster Recovery .......................... 173

High Availability ......................................................................................................................... 173

Asynchronous Messaging .................................................................................................... 175

Atomic and Idempotent Services ......................................................................................... 175

Graceful Degradation ........................................................................................................... 175

Offline Access ...................................................................................................................... 176

Scalability ................................................................................................................................. 176

Implementation Patterns ..................................................................................................... 178

Disaster Recovery ..................................................................................................................... 183

PaaS—SQL Offering ............................................................................................................ 183

PaaS—Storage .................................................................................................................... 189

IaaS—SQL Server as a Virtual Machine Offering ................................................................ 192

Summary .................................................................................................................................. 195

Chapter 9: Availability and Economics of 9s ........................................................ 197

Economics of 9s ........................................................................................................................ 198

Economics of (Non)-Availability ................................................................................................ 198

Computing Availability ............................................................................................................... 199

Monitoring Availability ............................................................................................................... 201

Enforcing Availability via SLA .................................................................................................... 204

Designing for SLA ..................................................................................................................... 205

Redundant System .............................................................................................................. 206

Cold Standby System ........................................................................................................... 206

Warm Standby System ........................................................................................................ 206

Automatic Failover System .................................................................................................. 207

Always Available System ..................................................................................................... 208

Economics of Downtime and Availability .................................................................................. 209

Downtime Costs .................................................................................................................. 210

Availability Costs ................................................................................................................. 210

Summary .................................................................................................................................. 210

Table of Contents

x

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Hardening Azure Applications Techniques and Principles for Building Large-Scale, Mission-Critical Applications PDF

268 Pages·2019·32.7633 MB·english
by  Suren Machiraju Suraj Gaurav Foreword by Scott Guthrie and Steven Smith
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About Hardening Azure Applications Techniques and Principles for Building Large-Scale, Mission-Critical Applications

<p>Table of Contents</p><p>Chapter 1: Introducing the Cloud Computing Platform ............................................. 1</p><p>Cloud and Platform ....................................................................................................................... 1</p><p>Relevance of the Cloud Platform ................................................................................................... 2</p><p>Cloud Platform Benefits ................................................................................................................ 3</p><p>Your Application and Cloud Platform Matchup .............................................................................. 3</p><p>Does Your Application Belong on the Cloud Platform? ............................................................ 3</p><p>Is the Cloud Platform Ready for Your Enterprise-Class Application? ....................................... 4</p><p>On-premises and Cloud Platform Integration ................................................................................ 5</p><p>Heterogeneity of the Cloud Platform ............................................................................................. 6</p><p>Trust and Security ......................................................................................................................... 6</p><p>Cloud Platform Services ................................................................................................................ 7</p><p>Compute Services ................................................................................................................... 9</p><p>Networking ............................................................................................................................ 18</p><p>Storage and Data Services .................................................................................................... 23</p><p>App Services .......................................................................................................................... 33</p><p>Summary .................................................................................................................................... 41</p><p>About the Authors .................................................................................................... xi</p><p>About the Technical Reviewer ............................................................................... xiii</p><p>Acknowledgments ...................................................................................................xv</p><p>Foreword ...............................................................................................................xvii</p><p>Additional Foreword ...............................................................................................xix</p><p>Introduction ............................................................................................................xxi</p><p>vi</p><p>Chapter 2: Cloud Applications ................................................................................ 43</p><p>Cloud Application Platforms ........................................................................................................ 43</p><p>What’s aaS? ........................................................................................................................... 43</p><p>Platform Types ....................................................................................................................... 45</p><p>Infrastructure as a Service (IaaS) .......................................................................................... 49</p><p>Platform as a Service (PaaS) ................................................................................................. 50</p><p>Software as a Service (SaaS) ................................................................................................ 53</p><p>Other Cloud Application Platforms .............................................................................................. 55</p><p>Cloud Web Services ............................................................................................................... 55</p><p>Cloud Managed Services ....................................................................................................... 56</p><p>Cloud Application Deployment Models ........................................................................................ 56</p><p>Public Cloud ........................................................................................................................... 56</p><p>Private Cloud ......................................................................................................................... 57</p><p>Hybrid Cloud .......................................................................................................................... 58</p><p>Summary .................................................................................................................................... 59</p><p>Chapter 3: Hardened Cloud Applications ................................................................ 61</p><p>Hardened Applications ................................................................................................................ 61</p><p>Hello World vs. Real-World? ........................................................................................................ 62</p><p>Real-World and Hardened Applications ...................................................................................... 63</p><p>Availability ............................................................................................................................. 64</p><p>Reliability ............................................................................................................................... 69</p><p>Scalability .............................................................................................................................. 71</p><p>Recoverability ........................................................................................................................ 73</p><p>Security ................................................................................................................................. 75</p><p>Low Latency .......................................................................................................................... 78</p><p>Modern Organization ................................................................................................................... 79</p><p>Engineering ........................................................................................................................... 79</p><p>Support .................................................................................................................................. 86</p><p>Summary .................................................................................................................................... 87</p><p>Table of Contents</p><p>vii</p><p>Chapter 4: Service Fundamentals: Instrumentation, Telemetry,</p><p>and Monitoring ....................................................................................................... 89</p><p>Instrumentation ........................................................................................................................... 90</p><p>Best Practices for Designing Instrumentation ....................................................................... 90</p><p>High-Value and High-Volume Data ........................................................................................ 92</p><p>Event Tracing ......................................................................................................................... 93</p><p>Azure Diagnostics .................................................................................................................. 95</p><p>Telemetry .................................................................................................................................... 96</p><p>Best Practices for Designing Telemetry ................................................................................. 96</p><p>Monitoring ................................................................................................................................... 98</p><p>Typical Monitoring Solutions (Azure Network Watcher) ......................................................... 99</p><p>Best Practices for Designing Monitoring ............................................................................. 102</p><p>Vendor and Third-Party Solutions ............................................................................................. 118</p><p>Summary .................................................................................................................................. 122</p><p>Chapter 5: Key Application Experiences: Latency, Scalability,</p><p>and Throughput .................................................................................................... 123</p><p>Latency ..................................................................................................................................... 123</p><p>Factors That Affect Latency ................................................................................................. 124</p><p>Best Practices ...................................................................................................................... 124</p><p>Scalability ................................................................................................................................. 130</p><p>Scaling Up ........................................................................................................................... 130</p><p>Scaling Out .......................................................................................................................... 131</p><p>Best Practices ...................................................................................................................... 132</p><p>Throughput ................................................................................................................................ 137</p><p>Best Practices ...................................................................................................................... 137</p><p>Summary .................................................................................................................................. 139</p><p>Table of Contents</p><p>viii</p><p>Chapter 6: Failures and Their Inevitability ........................................................... 141</p><p>Case Studies of Major Cloud Service Failures .......................................................................... 142</p><p>Azure Storage Server Failure ............................................................................................... 142</p><p>Amazon Web Services Failure ............................................................................................. 143</p><p>Measuring Failures ................................................................................................................... 143</p><p>Failure Categories ..................................................................................................................... 145</p><p>Hard Failure ......................................................................................................................... 145</p><p>Soft Failure .......................................................................................................................... 146</p><p>Gray Failure ......................................................................................................................... 146</p><p>Preparing for Failure ................................................................................................................. 148</p><p>Design for Failure and a Quick Recovery ............................................................................ 149</p><p>Minimizing Human Error ...................................................................................................... 150</p><p>Summary .................................................................................................................................. 153</p><p>Chapter 7: Failures and Recovery ......................................................................... 155</p><p>Design Best Practices ............................................................................................................... 156</p><p>Failure Domain .................................................................................................................... 156</p><p>Loose Coupling .................................................................................................................... 158</p><p>Scale Out to More for Less .................................................................................................. 158</p><p>Testing Best Practices ............................................................................................................... 160</p><p>Sandboxing .......................................................................................................................... 161</p><p>Scenario Testing .................................................................................................................. 164</p><p>Failure-Detection Strategies ..................................................................................................... 165</p><p>IaaS Virtual Infrastructure .................................................................................................... 165</p><p>PaaS Application .................................................................................................................. 167</p><p>Databases ............................................................................................................................ 167</p><p>Storage ................................................................................................................................ 168</p><p>Network ............................................................................................................................... 168</p><p>Strategies for Recovery ............................................................................................................ 168</p><p>Dev-Test-Ops Organization .................................................................................................. 169</p><p>Remote Script Execution ..................................................................................................... 171</p><p>Summary .................................................................................................................................. 172</p><p>Table of Contents</p><p>ix</p><p>Chapter 8: High Availability, Scalability, and Disaster Recovery .......................... 173</p><p>High Availability ......................................................................................................................... 173</p><p>Asynchronous Messaging .................................................................................................... 175</p><p>Atomic and Idempotent Services ......................................................................................... 175</p><p>Graceful Degradation ........................................................................................................... 175</p><p>Offline Access ...................................................................................................................... 176</p><p>Scalability ................................................................................................................................. 176</p><p>Implementation Patterns ..................................................................................................... 178</p><p>Disaster Recovery ..................................................................................................................... 183</p><p>PaaS—SQL Offering ............................................................................................................ 183</p><p>PaaS—Storage .................................................................................................................... 189</p><p>IaaS—SQL Server as a Virtual Machine Offering ................................................................ 192</p><p>Summary .................................................................................................................................. 195</p><p>Chapter 9: Availability and Economics of 9s ........................................................ 197</p><p>Economics of 9s ........................................................................................................................ 198</p><p>Economics of (Non)-Availability ................................................................................................ 198</p><p>Computing Availability ............................................................................................................... 199</p><p>Monitoring Availability ............................................................................................................... 201</p><p>Enforcing Availability via SLA .................................................................................................... 204</p><p>Designing for SLA ..................................................................................................................... 205</p><p>Redundant System .............................................................................................................. 206</p><p>Cold Standby System ........................................................................................................... 206</p><p>Warm Standby System ........................................................................................................ 206</p><p>Automatic Failover System .................................................................................................. 207</p><p>Always Available System ..................................................................................................... 208</p><p>Economics of Downtime and Availability .................................................................................. 209</p><p>Downtime Costs .................................................................................................................. 210</p><p>Availability Costs ................................................................................................................. 210</p><p>Summary .................................................................................................................................. 210</p><p>Table of Contents</p><p>x</p>

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