Taming the Legacy Monolith
Transcript of Taming the Legacy Monolith
![Page 1: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/1.jpg)
PEGGY KUO • SENIOR DEVELOPER • ATLASSIAN • @PYKO
Taming the Legacy Monolith
![Page 2: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/2.jpg)
![Page 3: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/3.jpg)
legacy monolith
![Page 4: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/4.jpg)
![Page 5: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/5.jpg)
![Page 6: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/6.jpg)
![Page 7: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/7.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
Credit: Benny Lee
![Page 8: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/8.jpg)
write tests
![Page 9: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/9.jpg)
rewrite
![Page 10: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/10.jpg)
Don’t do this
![Page 11: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/11.jpg)
the expert
![Page 12: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/12.jpg)
bottleneck
![Page 13: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/13.jpg)
team
![Page 14: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/14.jpg)
understanding
![Page 15: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/15.jpg)
bus factor
![Page 16: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/16.jpg)
What now?
![Page 17: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/17.jpg)
![Page 18: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/18.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
![Page 19: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/19.jpg)
FEAR
![Page 20: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/20.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
Credit: Okko Pyykkö
![Page 21: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/21.jpg)
Do this instead
![Page 22: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/22.jpg)
the expert
![Page 23: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/23.jpg)
Common techniques
![Page 24: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/24.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
brown bags
![Page 25: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/25.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
pair programming
![Page 26: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/26.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
code reviews
![Page 27: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/27.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
over the shoulder code reviews
![Page 28: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/28.jpg)
More techniques
![Page 29: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/29.jpg)
![Page 30: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/30.jpg)
![Page 31: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/31.jpg)
![Page 32: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/32.jpg)
Improve
![Page 33: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/33.jpg)
Credit: Jens Tärning
![Page 34: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/34.jpg)
Credit: Lemon Liu
![Page 35: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/35.jpg)
Credit: Vicons Design
![Page 36: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/36.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
![Page 37: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/37.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
Credit: Susanne Nilsson
![Page 38: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/38.jpg)
more people =
less bottlenecks
![Page 39: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/39.jpg)
more people =
find bugs
![Page 40: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/40.jpg)
more people =
improved code
![Page 41: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/41.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
imagine…
Credit: Davide Restivo
![Page 42: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/42.jpg)
Code reviews
Pair programming
Brown bags
![Page 43: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/43.jpg)
HelpOwnership Environment
![Page 44: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/44.jpg)
Write testsRefactorDelete code
![Page 45: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/45.jpg)
• Big cool statistic
• 2,569
• Add-Ons in Marketplace
![Page 46: Taming the Legacy Monolith](https://reader031.fdocuments.net/reader031/viewer/2022020301/58e76a0e1a28abac7d8b4883/html5/thumbnails/46.jpg)
Thank you!
PEGGY KUO • SENIOR DEVELOPER • ATLASSIAN • @PYKO