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Practical microservices - javazone 2014

  1. 1. PRACTICAL CONSIDERATIONS FOR MICRO SERVICES Sam Newman Javazone 2014, September 2014 1
  2. 2. 14 PRACTICAL TIPS FOR MICROSERVICES Sam Newman Javazone 2014, September 2014 2
  3. 3. YOU WON’T BELIEVE WHAT THEY DO WITH MICROSERVICES IN THIS TALK! Sam Newman Javazone 2014, September 2014 3
  4. 4. SEE WHAT JENNIFER LAWRENCE THINKS ABOUT DISTRIBUTED SYSTEMS! Sam Newman Javazone 2014, September 2014 4
  5. 5. Customer Service Accounts Returns Invoicing Shipping Inventory @javazone @samnewman
  6. 6. Focused around a business domain Customer Service Accounts Returns Invoicing Shipping Inventory @javazone @samnewman
  7. 7. Focused around a business domain Customer Service Technology Agnostic API Accounts Returns Invoicing Shipping Inventory @javazone @samnewman
  8. 8. Focused around a business domain Customer Service Technology Agnostic API Small Accounts Returns Invoicing Shipping Inventory @javazone @samnewman
  9. 9. @javazone @samnewman
  10. 10. @javazone @samnewman
  11. 11. V1 @javazone @samnewman
  12. 12. V2 @javazone @samnewman
  13. 13. Go Java NodeJS Ruby @javazone @samnewman
  14. 14. Go NodeJS Ruby Clojure! @javazone @samnewman
  15. 15. @javazone @samnewman
  16. 16. @javazone @samnewman
  17. 17. @javazone @samnewman
  18. 18. @javazone @samnewman
  19. 19. Where To Standardise? @javazone @samnewman
  20. 20. @javazone @samnewman © 2013 Electronic Arts Inc.
  21. 21. @javazone @samnewman
  22. 22. Interfaces @javazone @samnewman
  23. 23. Interfaces Monitoring @javazone @samnewman
  24. 24. Interfaces Monitoring Deployment & Testing @javazone @samnewman
  25. 25. Architectural Safety @javazone @samnewman
  26. 26. @javazone @samnewman
  27. 27. Free For All @javazone @samnewman
  28. 28. Standardisation Free For All @javazone @samnewman
  29. 29. Standardisation TIP 1 / 14: Standardise in the gaps between services - be flexible about what happens inside the boxes Free For All @javazone @samnewman
  30. 30. @javazone @samnewman
  31. 31. @javazone @samnewman
  32. 32. @javazone @samnewman
  33. 33. @javazone @samnewman
  34. 34. @javazone @samnewman
  35. 35. @javazone @samnewman https://www.flickr.com/photos/garrymsmith/6108841070
  36. 36. Autonomy Communication @javazone @samnewman
  37. 37. Team Ownership @javazone @samnewman
  38. 38. Team Ownership ??? @javazone @samnewman
  39. 39. Trusted Committer / Roving Custodian @javazone @samnewman
  40. 40. Trusted Committer / Roving Custodian ??? @javazone @samnewman
  41. 41. Trusted Committer / Roving Custodian ??? @javazone @samnewman
  42. 42. Trusted Committer / Roving Custodian ??? @javazone @samnewman
  43. 43. Trusted Committer / Roving Custodian ??? @javazone @samnewman
  44. 44. Trusted Committer / Roving Custodian ??? @javazone @samnewman
  45. 45. Trusted Committer / Roving Custodian TIP 2 / 14: Have a cle?a?r ?custodian model! @javazone @samnewman
  46. 46. Interfaces @javazone @samnewman
  47. 47. @javazone @samnewman
  48. 48. @javazone @samnewman
  49. 49. @javazone @samnewman
  50. 50. Coupling Is Bad @javazone @samnewman
  51. 51. Integration Styles An Evolutionary View Data Oriented Procedure Oriented Document Oriented Resource Oriented @javazone @samnewman
  52. 52. Integration Styles An Evolutionary View Data Oriented Procedure Oriented Document Oriented Resource Oriented @javazone @samnewman
  53. 53. Integration Styles An Evolutionary View TIP 3 / 14: Avoid RPC-mechanisms or shared serialisation protocols to avoid coupling Data Oriented Procedure Oriented Document Oriented Resource Oriented @javazone @samnewman
  54. 54. Database @javazone @samnewman
  55. 55. Database @javazone @samnewman
  56. 56. Database @javazone @samnewman
  57. 57. Database @javazone @samnewman
  58. 58. Database @javazone @samnewman
  59. 59. Database @javazone @samnewman
  60. 60. Database @javazone @samnewman
  61. 61. Database Database @javazone @samnewman
  62. 62. Database Database @javazone @samnewman
  63. 63. TIP 4 / 14: Separate the databases before separating services Database Database @javazone @samnewman
  64. 64. The Customer Is Always Right @javazone @samnewman
  65. 65. @javazone @samnewman
  66. 66. @javazone @samnewman
  67. 67. TIP 5 / 14: Adopt a consumer first approach @javazone @samnewman
  68. 68. Monitoring @javazone @samnewman
  69. 69. @javazone @samnewman
  70. 70. http://www.flickr.com/photos/kalexanderson/5421517469/ @javazone @samnewman
  71. 71. http://www.flickr.com/photos/kalexanderson/5421517469/ @javazone @samnewman
  72. 72. @javazone @samnewman
  73. 73. @javazone @samnewman
  74. 74. ??? @javazone @samnewman
  75. 75. You have to get *much* better at monitoring @javazone @samnewman
  76. 76. @javazone @samnewman
  77. 77. @javazone @samnewman
  78. 78. @javazone @samnewman
  79. 79. @javazone @samnewman
  80. 80. You are not a badass if you use an SSH Multiplexer @javazone @samnewman
  81. 81. @javazone @samnewman
  82. 82. @javazone @samnewman
  83. 83. @javazone @samnewman
  84. 84. Response Time Response Time Response Time @javazone @samnewman
  85. 85. Response Time Response Time Response Time @javazone @samnewman
  86. 86. Response Time Response Time Response Time @javazone @samnewman
  87. 87. @javazone @samnewman
  88. 88. @javazone @samnewman
  89. 89. TIP 6 / 14: Capture metrics, and logs, for each node, and aggregate them to get a rolled up picture @javazone @samnewman
  90. 90. @javazone @samnewman
  91. 91. @javazone @samnewman
  92. 92. @javazone @samnewman
  93. 93. TIP 7 / 14: Use synthetic transactions to test production systems @javazone @samnewman
  94. 94. @javazone @samnewman
  95. 95. @javazone @samnewman
  96. 96. @javazone @samnewman
  97. 97. ID: 123 @javazone @samnewman
  98. 98. ID: 123 ID: 123 ID: 123 @javazone @samnewman
  99. 99. ID: 123 TIP 8 / 14: Use correlation IDs to track down nasty bugs ID: 123 ID: 123 @javazone @samnewman
  100. 100. Deployment @javazone @samnewman
  101. 101. @javazone @samnewman
  102. 102. @javazone @samnewman
  103. 103. @javazone @samnewman
  104. 104. ! @javazone @samnewman
  105. 105. ! ! @javazone @samnewman
  106. 106. ! ! ! @javazone @samnewman
  107. 107. @javazone @samnewman
  108. 108. @javazone @samnewman
  109. 109. @javazone @samnewman
  110. 110. TIP 9 / 14: Abstract out underlying platform differences to provide a uniform deployment mechanism @javazone @samnewman
  111. 111. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman
  112. 112. Customer Service Accounts Returns Invoicing Shipping Inventory @javazone @samnewman
  113. 113. Customer Service Accounts Returns Invoicing Shipping Inventory @javazone @samnewman
  114. 114. Inventory Accounts Mountebank http://www.mbtest.org @javazone @samnewman
  115. 115. Inventory Accounts! Stub Mountebank http://www.mbtest.org @javazone @samnewman
  116. 116. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman
  117. 117. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman
  118. 118. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman
  119. 119. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman
  120. 120. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman
  121. 121. @javazone @samnewman
  122. 122. Browsers @javazone @samnewman
  123. 123. Timing Browsers @javazone @samnewman
  124. 124. Provisioning of Environments Timing Browsers @javazone @samnewman
  125. 125. Networks Provisioning of Environments Timing Browsers @javazone @samnewman
  126. 126. Deployment Networks Provisioning of Environments Timing Browsers @javazone @samnewman
  127. 127. Deployment Networks Provisioning of Environments Timing Browsers Diagnosis @javazone @samnewman
  128. 128. CONSUMER-DRIVEN CONTRACTS Shipping Inventory @javazone @samnewman
  129. 129. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations @javazone @samnewman
  130. 130. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations @javazone @samnewman
  131. 131. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations Prod @javazone @samnewman
  132. 132. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations Prod @javazone @samnewman
  133. 133. @javazone @samnewman
  134. 134. https://github.com/realestate-com-au/pact @javazone @samnewman
  135. 135. TIP 10 / 14: Consumer Driven Tests to catch breaking changes https://github.com/realestate-com-au/pact @javazone @samnewman
  136. 136. Pending… Prod
  137. 137. Pending… Prod
  138. 138. Pending… Prod
  139. 139. Pending… Prod
  140. 140. Pending… Prod
  141. 141. Pending… Prod TIP 11 / 14: Don’t let changes build up - release as soon as you can, and preferably one at a time!
  142. 142. Architectural Safety @javazone @samnewman
  143. 143. @javazone @samnewman
  144. 144. @javazone @samnewman
  145. 145. @javazone @samnewman
  146. 146. @javazone @samnewman
  147. 147. http://www.flickr.com/photos/louish/5611657857/ @javazone @samnewman
  148. 148. Connection Pool @javazone @samnewman
  149. 149. Connection Pool @javazone @samnewman
  150. 150. Connection Pool @javazone @samnewman
  151. 151. Connection Pool @javazone @samnewman
  152. 152. Connection Pool Connection Pool @javazone @samnewman
  153. 153. Connection Pool Connection Pool @javazone @samnewman
  154. 154. Connection Pool Connection Pool @javazone @samnewman
  155. 155. Connection Pool Connection Pool @javazone @samnewman
  156. 156. @javazone @samnewman
  157. 157. @javazone @samnewman
  158. 158. @javazone @samnewman
  159. 159. TIP 12 / 14: Use timeouts, circuit breakers and bulk-heads to avoid cascading failure @javazone @samnewman
  160. 160. Special Service Behaviour @javazone @samnewman
  161. 161. Integration Special Service Behaviour @javazone @samnewman
  162. 162. Integration Special Service Behaviour Downstream @javazone @samnewman
  163. 163. Integration Special Service Behaviour Downstream Metrics @javazone @samnewman
  164. 164. Integration Special Service Behaviour Downstream Metrics @javazone @samnewman
  165. 165. Integration Special Service Behaviour Downstream Metrics @javazone @samnewman
  166. 166. Integration Special Service Behaviour Metrics TIP 13 / 14: Consider Service Templates to make it easy to do the right thing! Downstream @javazone @samnewman
  167. 167. @javazone @samnewman
  168. 168. @javazone @samnewman
  169. 169. @javazone @samnewman
  170. 170. @javazone @samnewman
  171. 171. Choice! Opportunity @javazone @samnewman
  172. 172. Choice! Opportunity Complexity @javazone @samnewman
  173. 173. Choice! Opportunity Monitoring Complexity Deployment Safety Integration @javazone @samnewman
  174. 174. Choice! Opportunity TIP 14 / 14: Find your own balance Monitoring Complexity Deployment Safety Integration @javazone @samnewman
  175. 175. 62 Building Microservices DESIGNING FINE-GRAINED SYSTEMS Sam Newman
  176. 176. Designing For ! Rapid Release 500 West Madison 500 West Madison @javazone @samnewman
  177. 177. 500 West Madison 500 West Madison From Macro To Micro Designing For ! Rapid Release @javazone @samnewman
  178. 178. 500 West Madison 500 West Madison From Macro To Micro Designing For ! Rapid Release http://lanyrd.com/profile/samnewman/ @javazone @samnewman
  179. 179. THANKS! Any questions: @samnewman snewman@thoughtworks.com

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