Failure Teaches Success

2014-07-17 System Lightning Talks Bar Vol.2
"Failure Teaches Success" by kwappa

Transcript

1. Failure Teaches Success 2014-07-17! System Lightning Talks Bar Vol.2! SHIOYA, Hiromu (@kwappa)
2. Hello, World!
3. kwappa SHIOYA Hiromu
5. http://cookpad.com
6. http://info.cookpad.com
7. http://bit.ly/cookpadjobs
8. Failure Teaches Success
9. CASE 1 1998
10. FLAG SHOULD NEVER COMPARE TO 1
11. FOR EXAMPLE
12. !!! BUG !!! item[42] # => 0
13. !!! BUG !!! item[42] # => 1
14. !!! BUG !!! item[42] # => 2
15. !!! BUG !!! item[42] # => 3
16. !!! BUG !!! item[42] # => 4
17. !!! BUG !!! item[42] # => 5
18. DEAD END
19. BETTER ONE
20. CASE 2 2008
21. BOSS SHOULD NEVER DEPLOY
22. NEW BOSS CAME AND TOLD US
23. NEW BOSS CAME AND TOLD US I USED TO CODE, BUT I TOOK AN ARROW IN THE KNEE...
24. OUR SYSTEM commit checkout rsync DEVELOPER SVN STAGING DEPLOY PRODUCTION
25. HERE COMES THE BOSS rsync STAGING DEPLOY PRODUCTION
26. HERE COMES THE BOSS login rsync STAGING DEPLOY PRODUCTION
27. HERE COMES THE BOSS login rsync STAGING DEPLOY PRODUCTION $vi regist.php
28. HERE COMES THE BOSS login rsync STAGING DEPLOY PRODUCTION $vi regist.php $rm regist.php
29. HERE COMES THE BOSS login rsync STAGING DEPLOY PRODUCTION $vi regist.php $rm regist.php $svn hogehoge
30. HERE COMES THE BOSS login rsync STAGING DEPLOY PRODUCTION $vi regist.php $rm regist.php $svn hogehoge $./deploy.sh
31. CASE 3 2014
32. ERRORS SHOULD NEVER PASS SILENTLY
33. http://www.flickr.com/photos/chrisdonia/3460805358/
34. http://www.flickr.com/photos/chrisdonia/3460805358/ ʊਓਓਓਓਓਓਓਓਓਓਓਓਓਓʊ ʼ 500 ʻ ʼ INTERNAL SERVER ERROR ʻ ʉY^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Yʉ
35. OAuth2::Response#parsed # => nil
36. https://github.com/intridea/oauth2/commit/ 56f9758d961fc317a05b2f93fd039588967a84b1
41. WHY DID IT WORK? multi_xml oauth2 requires
42. WHY DID IT WORK? multi_xml httparty oauth2 requires depends
43. WHY DID IT WORK? aws-sdk-ruby multi_xml httparty oauth2 requires depends depends
44. WHY DID IT BRAKE?
45. WHY DID IT BRAKE? Gemfile
46. WHY DID IT BRAKE? Gemfile.lock Gemfile
47. https://github.com/aws/aws-sdk-ruby/commit/ c25952ed50d568172de6eb1756525a35eeb2fa77
48. WHY DID IT BREAK? aws-sdk-ruby multi_xml httparty oauth2 requires depends depends
49. WHY DID IT BREAK? aws-sdk-ruby multi_xml httparty oauth2 requires depends
50. WHY DID IT BREAK? aws-sdk-ruby multi_xml oauth2 requires
51. WHY DID IT BREAK? aws-sdk-ruby oauth2 requires
52. WHY DID IT BREAK? aws-sdk-ruby oauth2 requires ʊਓਓਓਓਓਓਓਓਓਓਓਓਓਓʊ ʼ 500 ʻ ʼ INTERNAL SERVER ERROR ʻ ʉY^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Yʉ
53. CONCLUSION
54. FLAG SHOULD NEVER COMPARE TO 1
55. FLAG SHOULD NEVER COMPARE TO 1 BOSS SHOULD NEVER DEPLOY
56. FLAG SHOULD NEVER COMPARE TO 1 BOSS SHOULD NEVER DEPLOY ERRORS SHOULD NEVER PASS SILENTLY
57. Failure Teaches Success SHARE YOUR FAILURES!!! THANK YOU FOR LISTENING