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

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

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

Sebastian Heuer

September 30, 2016
Tweet

More Decks by Sebastian Heuer

See All by Sebastian Heuer
The State of Asynchronous PHP
sebastianheuer
0
29
Typescript - A Marriage Counselor for Frontend and Backend
sebastianheuer
0
33
The Myth of Untestable Code
sebastianheuer
0
23
Deployment without the Hassle @ IPC 2016
sebastianheuer
1
48
99% is not enough
sebastianheuer
0
92
A Developer's Survival Guide for the Microservice Era
sebastianheuer
2
380
PHPUGHH - Deployment with OS Packages
sebastianheuer
0
73
How to manage your Project's Toolchain in 2016
sebastianheuer
1
43
Don't Fear the Walking Dead - How to get rid of a monolith
sebastianheuer
0
71

Other Decks in Technology

See All in Technology
AWS Media Services 最新サービスアップデート 2024
eijikominami
0
200
SRE×AIOpsを始めよう！GuardDutyによるお手軽脅威検出
amixedcolor
0
200
100 名超が参加した日経グループ横断の競技型 AWS 学習イベント「Nikkei Group AWS GameDay」の紹介/mediajaws202411
nikkei_engineer_recruiting
1
170
プロダクト活用度で見えた真実 ホリゾンタルSaaSでの顧客解像度の高め方
tadaken3
0
200
Zennのパフォーマンスモニタリングでやっていること
ryosukeigarashi
0
200
TypeScriptの次なる大進化なるか！？　条件型を返り値とする関数の型推論
uhyo
2
1.7k
OCI Security サービス 概要
oracle4engineer
PRO
0
6.5k
"とにかくやってみる"で始めるAWS Security Hub
maimyyym
2
100
障害対応指揮の意思決定と情報共有における価値観 / Waroom Meetup #2
arthur1
5
490
開発生産性を上げながらビジネスも30倍成長させてきたチームの姿
kamina_zzz
2
1.7k
適材適所の技術選定 〜GraphQL・REST API・tRPC〜 / Optimal Technology Selection
kakehashi
1
710
ISUCONに強くなるかもしれない日々の過ごしかた/Findy ISUCON 2024-11-14
fujiwara3
8
880

Featured

See All Featured
Fantastic passwords and where to find them - at NoRuKo
philnash
50
2.9k
Typedesign – Prime Four
hannesfritz
40
2.4k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
280
13k
Why You Should Never Use an ORM
jnunemaker
PRO
54
9.1k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
126
18k
Writing Fast Ruby
sferik
627
61k
Speed Design
sergeychernyshev
25
620
Dealing with People You Can't Stand - Big Design 2015
cassininazir
364
24k
Why Our Code Smells
bkeepers
PRO
334
57k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
246
1.3M
Raft: Consensus for Rubyists
vanstee
136
6.6k
[RailsConf 2023] Rails as a piece of cake
palkan
52
4.9k

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