Rails Instrumentation

Learn how to unleash the power of instrumentation already baked into your Rails application for monitoring, metrics, logging, and many other purposes. In this presentation, you'll learn how Rails uses the Observer Pattern to asynchronously instrument events for which you can subscribe to and even customize for your specific business needs.

Transcript

1. Instrumentation Brooke Kuhlmann alchemists.io
2. What? alchemists.io
3. Active Support guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
4. Observer Pattern Instrumenter Subscriber alchemists.io
5. Observer Pattern Instrumenter Subscriber Subscriber Subscriber Subscriber Subscriber alchemists.io
6. Observer Pattern alchemists.io
7. Observer Pattern Side E ff ects alchemists.io
8. Observer Pattern alchemists.io
9. Observer Pattern alchemists.io
10. Implementation alchemists.io
11. Implementation Instrumenter Subscriber alchemists.io
12. Implementation Instrumenter Subscriber Specs alchemists.io
13. Implementation Instrumenter Subscriber Specs Registration alchemists.io
14. Instrumenter Format guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
15. Instrumenter ActiveSupport::Noti fi cations.instrument "my.event.library", example: "data" Format guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
16. Instrumenter ActiveSupport::Noti fi cations.instrument "my.event.library", example: "data" Event Name Format guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
17. Instrumenter ActiveSupport::Noti fi cations.instrument "my.event.library", example: "data" Payload Format guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
18. Instrumenter Example guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
19. Instrumenter ActiveSupport::Noti fi cations.instrument "increment.metrics", key: "stripe.failure" Example guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
20. Instrumenter ActiveSupport::Noti fi cations.instrument "increment.metrics", key: "stripe.failure" Event Example guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
21. Instrumenter ActiveSupport::Noti fi cations.instrument "increment.metrics", key: "stripe.failure" Event Library Example guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
22. Instrumenter ActiveSupport::Noti fi cations.instrument "increment.metrics", key: "stripe.failure" Event Library Payload Example guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
23. Instrumenter Block guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
24. Instrumenter ActiveSupport::Noti fi cations.instrument "duration.metrics", key: "stripe.transaction" do adapter.charge amount end Block guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
25. Instrumenter ActiveSupport::Noti fi cations.instrument "duration.metrics", key: "stripe.transaction" do adapter.charge amount end Block guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
26. Instrumenter ActiveSupport::Noti fi cations.instrument "duration.metrics", key: "stripe.transaction" do adapter.charge amount end Start Finish Block guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
27. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
28. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
29. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
30. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
31. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
32. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
33. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
34. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
35. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
36. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
37. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
38. Subscriber "stripe.success" guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
39. Subscriber guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
40. Subscriber Specs alchemists.io
41. Subscriber Specs alchemists.io
42. Subscriber Specs alchemists.io
43. Subscriber Specs alchemists.io
44. Subscriber Specs alchemists.io
45. Subscriber Specs alchemists.io
46. Subscriber Specs alchemists.io
47. Subscriber Specs alchemists.io
48. Subscriber Specs alchemists.io
49. Subscriber Specs Event alchemists.io
50. Subscriber Specs Start alchemists.io
51. Subscriber Specs Finish alchemists.io
52. Subscriber Specs ID alchemists.io
53. Subscriber Specs Payload alchemists.io
54. Subscriber Specs alchemists.io
55. Subscriber Specs alchemists.io
56. Subscriber Specs alchemists.io
57. Subscriber Specs alchemists.io
58. Subscriber Specs alchemists.io
59. Registration alchemists.io
60. Registration con fi g/initializers/subscribers.rb alchemists.io
61. Registration con fi g/initializers/subscribers.rb alchemists.io
62. Registration con fi g/initializers/subscribers.rb alchemists.io
63. Registration con fi g/initializers/subscribers.rb alchemists.io
64. Registration alchemists.io
65. Debugging github.com/amazing-print/amazing_print alchemists.io
66. Debugging github.com/amazing-print/amazing_print bundle add amazing_print alchemists.io
67. Debugging github.com/amazing-print/amazing_print bundle add amazing_print alchemists.io
68. Debugging github.com/amazing-print/amazing_print bundle add amazing_print alchemists.io
69. Debugging github.com/amazing-print/amazing_print bundle add amazing_print Regular Expression! alchemists.io
70. Debugging github.com/amazing-print/amazing_print alchemists.io
71. Debugging github.com/amazing-print/amazing_print alchemists.io
72. Debugging github.com/amazing-print/amazing_print alchemists.io
73. Asynchronous Messaging alchemists.io
74. Asynchronous Messaging Instrumenter Subscriber Client Server alchemists.io
75. Metrics Success Failure 0 4.5 9 13.5 18 Stripe alchemists.io
76. Existing Instrumentation guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
77. Existing Instrumentation ~51 Instrumenters guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
78. Action Controller guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
79. Action Controller process_action.action_controller guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
80. Active Record guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
81. Active Record sql.active_record guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
82. Action Mailer guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
83. Action Mailer deliver.action_mailer guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
84. Active Job guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
85. Active Job perform.active_job enqueue_retry.active_job discard.active_job guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
86. Guidelines guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
87. Guidelines • Use for light weight ancillary tasks only. guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
88. Guidelines • Use for light weight ancillary tasks only. • Use for logging, metrics, etc. guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
89. Guidelines • Use for light weight ancillary tasks only. • Use for logging, metrics, etc. • Keep subscribers small and simple. guides.rubyonrails.org/active_support_instrumentation.html alchemists.io
90. Thanks 🙇 alchemists.io
91. Let's Connect! alchemists.io @bkuhlmann@mastodon.social