Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Don't Fear the Walking Dead - How to get rid of...

Avatar for Sebastian Heuer Sebastian Heuer
September 30, 2016
Technology
0
100

Don't Fear the Walking Dead - How to get rid of a zombie

together with Sebastian Thoß at code.talks 2016
Avatar for Sebastian Heuer

Sebastian Heuer

September 30, 2016
Tweet

More Decks by Sebastian Heuer

See All by Sebastian Heuer
The State of Asynchronous PHP
Avatar for Sebastian Heuer sebastianheuer
0
31
Typescript - A Marriage Counselor for Frontend and Backend
Avatar for Sebastian Heuer sebastianheuer
0
39
The Myth of Untestable Code
Avatar for Sebastian Heuer sebastianheuer
0
26
Deployment without the Hassle @ IPC 2016
Avatar for Sebastian Heuer sebastianheuer
1
51
99% is not enough
Avatar for Sebastian Heuer sebastianheuer
0
110
A Developer's Survival Guide for the Microservice Era
Avatar for Sebastian Heuer sebastianheuer
2
380
PHPUGHH - Deployment with OS Packages
Avatar for Sebastian Heuer sebastianheuer
0
75
How to manage your Project's Toolchain in 2016
Avatar for Sebastian Heuer sebastianheuer
1
45
Don't Fear the Walking Dead - How to get rid of a monolith
Avatar for Sebastian Heuer sebastianheuer
0
73

Other Decks in Technology

See All in Technology
Amazon Q Developer for GitHubとAmplify Hosting でサクッとデジタル名刺を作ってみた
Avatar for たけのこ kmiya84377
0
3.5k
Tenstorrent 開発者プログラム
Avatar for Tenstorrent Japan tenstorrent_japan
0
310
生成AIをテストプロセスに活用し"よう"としている話 #jasstnano
Avatar for Makky makky_tyuyan
0
170
原則から考える保守しやすいComposable関数設計
Avatar for Mori Atsushi moriatsushi
3
440
SFTPコンテナからファイルをダウンロードする
Avatar for ディップ株式会社 dip
0
340
エンジニア採用から始まる技術広報と組織づくり/202506lt
Avatar for Ichiro Nishiuma nishiuma
8
1.7k
QAはソフトウェアエンジニアリングを学んで実践するのが大事なの
Avatar for ymty ymty
1
400
ゆるSRE #11 LT
Avatar for Kaoru okaru
1
630
マルチテナント+マルチプロダクト SaaS への AI Agent の組み込み方
Avatar for KNOWLEDGE WORK / 株式会社ナレッジワーク kworkdev
PRO
2
350
TODAY 看世界(?) 是我們在看扣啦！
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
220
TerraformをSaaSで使うとAzureの運用がこんなに楽ちん！HCP Terraformって何？
Avatar for Minoru Nakabayashi mnakabayashi
0
140
菸酒生在 LINE Taiwan 的後端雙刀流
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
210

Featured

See All Featured
Put a Button on it: Removing Barriers to Going Fast.
Avatar for kastner kastner
60
3.9k
Large-scale JavaScript Application Architecture
Avatar for Addy Osmani addyosmani
512
110k
Java REST API Framework Comparison - PWX 2021
Avatar for Matt Raible mraible
31
8.6k
Speed Design
Avatar for Sergey Chernyshev sergeychernyshev
31
990
Building Better People: How to give real-time feedback that sticks.
Avatar for Will Jessup wjessup
367
19k
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
53
11k
Side Projects
Avatar for Sacha Greif sachag
455
42k
Building an army of robots
Avatar for Kyle Neath kneath
306
45k
[RailsConf 2023 Opening Keynote] The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
29
9.5k
Git: the NoSQL Database
Avatar for Brandon Keepers bkeepers
PRO
430
65k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
54
13k
Building a Scalable Design System with Sketch
Avatar for Laura Van Doore lauravandoore
462
33k

Transcript

  1. HOW TO GET RID OF A ZOMBIE DON’T

  2. None
  3. None
  4. None

  5. How we started • built on top of a standard

    e-commerce platform • a lot of custom code to support a wide combination of product options Feature X Feature Y Feature Z Core Code Customization

  6. The challenges of a growing business • serious performance issues

    • own developers don’t feel comfortable with the code • adding individual features is too complex • upgrading is hard

  7. Finding a way out

  8. You don’t have to replace everything at once!

  9. What part of the software causes the highest amount of

    pain? • category pages • product detail pages

  10. Planning

  11. Current Setup Legacy System Session Storage RDBMS Webserver

  12. Idea Legacy System Session Storage RDBMS Webserver New Software

  13. None
  14. None

  15. FURY Frontend Key-Value Storage getCategoryPage('hochzeit'); "<html><head>…</head><body>…</body></html>"

  16. None

  17. FURY Frontend Key-Value Storage ["SBU06HE","TEOD3HE","ANW04HD"] Search search("{'category':'hochzeit', 'filters':{}}"); getTiles(["SBU06HE","TEOD3HE","ANW04HD"]); ["<div

    class="category-item">…</div>", …]

  18. Webserver Key-Value Storage Search FURY Frontend FURY Backend FURY Components

  19. Webserver Key-Value Storage Search FURY Frontend FURY Backend Legacy RDBMS

    Legacy System Session Storage Collect & Export

  20. Webserver Key-Value Storage Search FURY Frontend FURY Backend Legacy RDBMS

    Legacy System Session Storage FURY Requests 200 OK

  21. Webserver Key-Value Storage Search FURY Frontend FURY Backend Legacy RDBMS

    Legacy System Session Storage Requests to Legacy System 404 NOT FOUND

  22. Webserver Key-Value Storage Search FURY Frontend FURY Backend Legacy RDBMS

    Legacy System Session Storage Requests to Legacy System 404 NOT FOUND 200 OK

  23. Learnings • we have full responsibility now • no framework

    needed • no relational database needed

  24. Goods and Bads • fully object-oriented • easy refactoring thanks

    to 100% code coverage • not enough automated acceptance tests • dependencies to legacy software (database changes, API calls)

  25. A/B Deployment

  26. Webserver (Router) Webserver FURY Frontend Server A K/V Storage Search

    FURY Backend Webserver FURY Frontend Server B K/V Storage Search FURY Backend

  27. Webserver (Router) Webserver FURY Frontend Server A K/V Storage Search

    FURY Backend Webserver FURY Frontend Server B K/V Storage Search FURY Backend active = A

  28. Webserver (Router) Webserver FURY Frontend Server A K/V Storage Search

    FURY Backend Webserver FURY Frontend Server B K/V Storage Search FURY Backend active = B

  29. RDBMS Read Slave Webserver FURY Frontend Server A K/V Storage

    Search FURY Backend Webserver (Router) Build Server Deploy Code active = B

  30. RDBMS Read Slave Webserver FURY Frontend Server A K/V Storage

    Search FURY Backend Webserver (Router) Build Server Deploy Code Collect & Export active = B

  31. RDBMS Read Slave Webserver FURY Frontend Server A K/V Storage

    Search FURY Backend Webserver (Router) Build Server Deploy Code Collect & Export Smoke Tests active = B

  32. RDBMS Read Slave Webserver FURY Frontend Server A K/V Storage

    Search FURY Backend Webserver (Router) Build Server Deploy Code Collect & Export Smoke Tests Switch to A active = A

  33. RDBMS Read Slave Webserver FURY Frontend Server A K/V Storage

    Search FURY Backend active = B Webserver (Router) Build Server Deploy Code Collect & Export

  34. What's next?

  35. Client /product

  36. Client /checkout/cart

  37. Client /checkout/cart Cart Service

  38. Client /checkout/cart Cart Service

  39. 11. Oktober 2016

  40. Next steps • open-source our CQRS RESTful Framework • replace

    the next parts of the legacy system with new, self-contained components / services

  41. "one hundred fifty-seven quinvigintillion, seven hundred eighty-six quattuorvigintillion, six hundred

    fifty-seven trevigintillion, seven hundred forty-seven duovigintillion, three hundred forty unvigintillion, one hundred eighty-six vigintillion, (…) nine hundred forty-five quintillion, eight hundred twenty-eight quadrillion, two hundred seventy trillion, eighty billion, …"

  42. https://www.instagram.com/kartenmacherei/ Q&A https://www.facebook.com/kartenmacherei/ +49 40 468996861 [email protected] http://www.kartenmacherei.de/recruiting