Scaling eBay Kleinanzeigen Intro Myself Manuel Aldana TU-Berlin - - PowerPoint PPT Presentation

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Scaling eBay Kleinanzeigen Intro Myself Manuel Aldana TU-Berlin - - PowerPoint PPT Presentation

Feb 02, 2023 611 likes •1.63k views

Scaling eBay Kleinanzeigen Intro Myself Manuel Aldana TU-Berlin eBayK #2 Intro Company != 2009 Top 10 Queue by the Wall by Garry Night CC license: https://flic.kr/p/ksPKNd Team: ~40 Content Talk 2009 Now People People

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Scaling eBay Kleinanzeigen

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Intro Myself

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Manuel Aldana

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eBayK #2 TU-Berlin

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Intro Company

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!=

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2009

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Top 10

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SLIDE 11 “Queue by the Wall” by Garry Night CC license: https://flic.kr/p/ksPKNd
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Team: ~40

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Content Talk

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2009 Now

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People Process Technology

People

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2009 now

10 20 30

Backend/Frontend Mobile Business Team-Size

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“Start-Up”

People

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2009 now

10 20 30

Backend/Frontend Mobile Business “Start-Up” Team-Size

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SLIDE 19 “Four of a kind” by Poker Fotos CC license: https://flic.kr/p/p2UiJi
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SLIDE 20 “Perra come lechuga” by Manetok CC license: https://flic.kr/p/4uArwV
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X-Channel

People

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2009 now

10 20 30

Backend/Frontend Mobile Business X-Channel Team-Size

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SLIDE 23 “Blood Donation” by Warren Rohner CC license: https://flic.kr/p/dxyUzG
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Mobile Strategy

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Imbalanced

People

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2009 now

10 20 30

Backend/Frontend Mobile Business Imbalanced Team Size

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“Doers” “Thinkers”

“Pyramids” by Wilhelm Joys Anderson CC license:https://flic.kr/p/7s7qbr
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“Doers” “Thinkers”

“Pyramids” by Wilhelm Joys Anderson CC license:https://flic.kr/p/7s7qbr
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People Process Technology

People

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People Process Technology

Process

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2009 now

Scrum Kanban Dev-only K a n b a n

Business

Rollouts 3- weekly hourly

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Heart-Beat

Process

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2009 now

Scrum Kanban Dev-only K a n b a n

Business

Number Rollouts 3- weekly hourly Heart-Beat

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SLIDE 34 Adapted “Normal ECG” from Wikimedia Commons https://goo.gl/q71aLZ

3 Weeks

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MTTF Optimized

(Mean Time To Failure)

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SLIDE 36 Adapted “Normal ECG” from Wikimedia Commons https://goo.gl/q71aLZ

Weekly Daily Hourly

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MTTR Optimized

(Mean Time To Recovery)

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Embedded Testers

Process

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2009 now

Scrum Kanban Dev-only K a n b a n

Business

Rollouts 3- weekly hourly Embedded Testers

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SEO Features Advertising

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Feature Flags

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Play-Time

Process

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2009 now

Scrum Kanban Dev-only K a n b a n

Business

Rollouts 3- weekly hourly Play-Time

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Efficiency...

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vs. Experiments

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SLIDE 47 JJ’s Beautiful Mess free creative commons” from Pink Sherbet Photography CC license: https://flic.kr/p/7vgLWL
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4h / Week

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Wearables iPad App Machine Learning Image Recognition etc… Swift

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People Process Technology

Process

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People Process Technology

Technology

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2009 now

Java / Spring Solr iOS Android Riak ES MySQL Hadoop

Tech Stack

(Excerpt) Mongo DB HTML/JS/ CSS

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BETA 3rd Party

Technology

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2009 now

Java / Spring Solr iOS Android Riak ES MySQL Hadoop Mongo DB BETA 3rd Party HTML/JS/ CSS

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SLIDE 55 “Tator Logo” from Wikimedia https://goo.gl/ScStWK
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“Edge Cases”

Technology

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“Little things will kill you”

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2009 now

Java / Spring Solr iOS Android Riak ES MySQL Hadoop Mongo DB “Edge Cases” HTML/JS/ CSS

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15 TB

RIAK

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15 TB

RIAK

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<1 MB 5 GB

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100 100.000.000 0,000001

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Repair Big-Data?

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24x7 ?

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SLIDE 71 “Gasp” by“Adam Cohn https://flic.kr/p/5fi79R
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0th percentile 100th percentile

Product (80/20)

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0th percentile 100th percentile

Technology (99,...999)

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Backend Monolith

Technology

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Codebase?

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Single!

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LOC: ~200K

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2009 now

30

Deployment Artifacts (Applications)

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Deployment?

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Full!

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HEAD

Daily

PROD

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Deploy CI Build Large Tests CI (automated) Sonar Checks Deploy Prod Manual Test (optional)

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Why Monolith?

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Consistency

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Simplicity

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HEAD PROD

20 min

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Game-Changer

Technology

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2009 now

10 20 30

Team-Size

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2009 now

10 20 30

Backend/Frontend Team-Size

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Wrap Up...

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People Process Technology

“Start-Up” X-Platform Misbalanced Heart-Beat Embedded Testers Play-Time BETA 3rd Party Edge Cases Monolith

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Your Context?

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Kanban

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Scaling over People is hard!

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“Microservice” is NOT a Goal

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Questions?

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