Practical microservices - javazone 2014

1. PRACTICAL CONSIDERATIONS FOR MICRO SERVICES Sam Newman Javazone 2014, September 2014 1

2. 14 PRACTICAL TIPS FOR MICROSERVICES Sam Newman Javazone 2014, September 2014 2

3. YOU WON’T BELIEVE WHAT THEY DO WITH MICROSERVICES IN THIS TALK! Sam Newman Javazone 2014, September 2014 3

4. SEE WHAT JENNIFER LAWRENCE THINKS ABOUT DISTRIBUTED SYSTEMS! Sam Newman Javazone 2014, September 2014 4

5. Customer Service Accounts Returns Invoicing Shipping Inventory @javazone @samnewman

6. Focused around a business domain Customer Service Accounts Returns Invoicing Shipping Inventory @javazone @samnewman

7. Focused around a business domain Customer Service Technology Agnostic API Accounts Returns Invoicing Shipping Inventory @javazone @samnewman

8. Focused around a business domain Customer Service Technology Agnostic API Small Accounts Returns Invoicing Shipping Inventory @javazone @samnewman

9. @javazone @samnewman

11. V1 @javazone @samnewman

12. V2 @javazone @samnewman

13. Go Java NodeJS Ruby @javazone @samnewman

14. Go NodeJS Ruby Clojure! @javazone @samnewman

19. Where To Standardise? @javazone @samnewman

22. Interfaces @javazone @samnewman

23. Interfaces Monitoring @javazone @samnewman

24. Interfaces Monitoring Deployment & Testing @javazone @samnewman

25. Architectural Safety @javazone @samnewman

27. Free For All @javazone @samnewman

28. Standardisation Free For All @javazone @samnewman

29. Standardisation TIP 1 / 14: Standardise in the gaps between services - be flexible about what happens inside the boxes Free For All @javazone @samnewman

35. @javazone @samnewman https://www.flickr.com/photos/garrymsmith/6108841070

36. Autonomy Communication @javazone @samnewman

37. Team Ownership @javazone @samnewman

38. Team Ownership ??? @javazone @samnewman

39. Trusted Committer / Roving Custodian @javazone @samnewman

40. Trusted Committer / Roving Custodian ??? @javazone @samnewman

45. Trusted Committer / Roving Custodian TIP 2 / 14: Have a cle?a?r ?custodian model! @javazone @samnewman

46. Interfaces @javazone @samnewman

50. Coupling Is Bad @javazone @samnewman

51. Integration Styles An Evolutionary View Data Oriented Procedure Oriented Document Oriented Resource Oriented @javazone @samnewman

52. Integration Styles An Evolutionary View Data Oriented Procedure Oriented Document Oriented Resource Oriented @javazone @samnewman

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. Database @javazone @samnewman

61. Database Database @javazone @samnewman

62. Database Database @javazone @samnewman

63. TIP 4 / 14: Separate the databases before separating services Database Database @javazone @samnewman

64. The Customer Is Always Right @javazone @samnewman

67. TIP 5 / 14: Adopt a consumer first approach @javazone @samnewman

68. Monitoring @javazone @samnewman

70. http://www.flickr.com/photos/kalexanderson/5421517469/ @javazone @samnewman

71. http://www.flickr.com/photos/kalexanderson/5421517469/ @javazone @samnewman

74. ??? @javazone @samnewman

75. You have to get *much* better at monitoring @javazone @samnewman

80. You are not a badass if you use an SSH Multiplexer @javazone @samnewman

84. Response Time Response Time Response Time @javazone @samnewman

89. TIP 6 / 14: Capture metrics, and logs, for each node, and aggregate them to get a rolled up picture @javazone @samnewman

93. TIP 7 / 14: Use synthetic transactions to test production systems @javazone @samnewman

97. ID: 123 @javazone @samnewman

98. ID: 123 ID: 123 ID: 123 @javazone @samnewman

99. ID: 123 TIP 8 / 14: Use correlation IDs to track down nasty bugs ID: 123 ID: 123 @javazone @samnewman

100. Deployment @javazone @samnewman

104. ! @javazone @samnewman

105. ! ! @javazone @samnewman

106. ! ! ! @javazone @samnewman

110. TIP 9 / 14: Abstract out underlying platform differences to provide a uniform deployment mechanism @javazone @samnewman

111. Shipping Inventory Customer Service Accounts Returns Invoicing @javazone @samnewman

114. Inventory Accounts Mountebank http://www.mbtest.org @javazone @samnewman

115. Inventory Accounts! Stub Mountebank http://www.mbtest.org @javazone @samnewman

122. Browsers @javazone @samnewman

123. Timing Browsers @javazone @samnewman

124. Provisioning of Environments Timing Browsers @javazone @samnewman

125. Networks Provisioning of Environments Timing Browsers @javazone @samnewman

126. Deployment Networks Provisioning of Environments Timing Browsers @javazone @samnewman

127. Deployment Networks Provisioning of Environments Timing Browsers Diagnosis @javazone @samnewman

128. CONSUMER-DRIVEN CONTRACTS Shipping Inventory @javazone @samnewman

129. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations @javazone @samnewman

130. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations @javazone @samnewman

131. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations Prod @javazone @samnewman

132. CONSUMER-DRIVEN CONTRACTS Shipping Inventory Expectations Prod @javazone @samnewman

134. https://github.com/realestate-com-au/pact @javazone @samnewman

135. TIP 10 / 14: Consumer Driven Tests to catch breaking changes https://github.com/realestate-com-au/pact @javazone @samnewman

136. Pending… Prod

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. Architectural Safety @javazone @samnewman

147. http://www.flickr.com/photos/louish/5611657857/ @javazone @samnewman

148. Connection Pool @javazone @samnewman

152. Connection Pool Connection Pool @javazone @samnewman

159. TIP 12 / 14: Use timeouts, circuit breakers and bulk-heads to avoid cascading failure @javazone @samnewman

160. Special Service Behaviour @javazone @samnewman

161. Integration Special Service Behaviour @javazone @samnewman

162. Integration Special Service Behaviour Downstream @javazone @samnewman

163. Integration Special Service Behaviour Downstream Metrics @javazone @samnewman

166. Integration Special Service Behaviour Metrics TIP 13 / 14: Consider Service Templates to make it easy to do the right thing! Downstream @javazone @samnewman

171. Choice! Opportunity @javazone @samnewman

172. Choice! Opportunity Complexity @javazone @samnewman

173. Choice! Opportunity Monitoring Complexity Deployment Safety Integration @javazone @samnewman

174. Choice! Opportunity TIP 14 / 14: Find your own balance Monitoring Complexity Deployment Safety Integration @javazone @samnewman

175. 62 Building Microservices DESIGNING FINE-GRAINED SYSTEMS Sam Newman

176. Designing For ! Rapid Release 500 West Madison 500 West Madison @javazone @samnewman

177. 500 West Madison 500 West Madison From Macro To Micro Designing For ! Rapid Release @javazone @samnewman

178. 500 West Madison 500 West Madison From Macro To Micro Designing For ! Rapid Release http://lanyrd.com/profile/samnewman/ @javazone @samnewman

179. THANKS! Any questions: @samnewman snewman@thoughtworks.com

Practical microservices - javazone 2014

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Practical microservices - javazone 2014