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Commits on May 23, 2021

  1. Update README.md

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  2. Merge pull request puncsky#22 from jorgedfbranco/patch-1 

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Commits on Apr 7, 2024

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Commits on Nov 1, 2024

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  3. + Targeted use cases to "Designing a URL shortener" (puncsky#26)

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Commits on Dec 17, 2024

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.PHONY: install
install:
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.PHONY: dev
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.PHONY: build
build:
gitbook pdf ./ ./_book/system-design-and-architecture-2nd-edition.pdf
gitbook epub ./ ./_book/system-design-and-architecture-2nd-edition.epub
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<h1 align="center">System Design and Architecture</h1>

<h3 align="center">
Grow your design skills with best practices 🚀 and a diverse community 👫
</h3>
> ⚠️ The 2nd Edition is still a work in progress.
The book *System Design and Architecture* has helped millions of software engineers worldwide to succeed in the Internet industry since 2015. Here is why it works:

1. 🌎 Real-world engineering. It comes from real-world examples of FANNG and many other silicon valley companies. And it outlines how to build real-world Internet products and services.
2. 🍕 Easy to digest. System design at the right level of abstraction is like a map to route you to your destination with the shortest cut. There are charts, diagrams, and step-by-step guides - all for you to acquire the minimum actionable knowledge to excel system design interviews and get started building.
3. 🤲 Full-coverage. It strives to be "the book" for you to master most of the system design use-cases, from backend to frontend and from zero to hero.
4. 🚶‍♀️ 4-step framework. This book approaches and solve problems in a systematic and repeatable way: 1) Clarify requirements 2) Sketch out the high-level design 3) Discuss individual components and how they interact with each other 4) Wrap up with blind spots or bottlenecks.

| Languages | [English](#english-version) | [中文版](#系统设计与构架---中文版)|
| --- | --- | --- |
| Communities | [Telegram: 1303 members](https://t.me/system_design_and_architecture) | 微信群356人(ID: onetptp) [电报群](https://t.me/system_design_cn)
| Websites | [TianPan.co (English)](https://tianpan.co/notes/2016-02-13-crack-the-system-design-interview) | [硅谷io (中文)](https://guigu.io/notes/151-introduction-to-architecture) |
| Mobile Apps | <img src="https://tianpan.co/download-tianpanco-app.png"/> <br/>[iOS](https://apps.apple.com/us/app/tianpan-co/id1492596286) / [Android](https://play.google.com/store/apps/details?id=co.tianpan.mobile) / [APK](https://github.com/puncsky/android-tianpanco-release/releases) | <img src="https://guigu.io/download-guiguio-app.png"/><br/>[iOS](https://apps.apple.com/app/apple-store/id1487436041) / [Android](https://play.google.com/store/apps/details?id=io.guigu.mobile) / [APK](https://github.com/puncsky/mobile-guiguio-release/releases) |
What's different in the 2nd Edition? From 2015 to 2022, we saw mobile ate the world, cloud-native computing came across Kubernetes, and web3 went through ups and downs. There are always new companies at different stages of their lifecycles taking the lead in the Internet industry. I am interested in how they work, aren't you? So in the 2nd Edition, I will

* add more interesting content with new companies and products.
* rewrite existing content with new trends in the industry.
* add more charts and diagrams with step-by-step guides.
* add a PDF edition of the book.
* deduplicate repetitive content so that each design takes its unique abstraction.

What is out of this book's scope?

* API design for specific domains. Please go to [Google's API design guide](https://cloud.google.com/apis/design).
* Object-oriented design. Its importance is quite overestimated by mediocre engineers.

## English Version
## How to use this book?

* For professionals (Google L5 or above), go directly to *System Design in Practice*.
* For junior and intermediate programmers (Google L3/L4), go to *System Design Theories* and then read *System Design in Practice*.
* For beginners, go to *Prepare for an Interview effectively*, then read *System Design Theories*, and finally go to *System Design in Practice*.

### System Design in Practice
| Product | Question |
| --- | --- |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580708936/web-guiguio/instagram.png" width="52" /> | [Designing Instagram or Pinterest](./en/2016-02-13-crack-the-system-design-interview.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580708917/web-guiguio/uber.png" width="52" />| [Designing Uber](./en/120-designing-uber.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709369/web-guiguio/facebook.png" width="52" />| [How Facebook Scale its Social Graph Store? TAO](./en/49-facebook-tao.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709414/web-guiguio/netflix.png" width="52" />| [How Netflix Serves Viewing Data?](./en/45-how-to-design-netflix-view-state-service.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709444/web-guiguio/stripe.png" width="52" />| [How to design robust and predictable APIs with idempotency?](./en/43-how-to-design-robust-and-predictable-apis-with-idempotency.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709414/web-guiguio/netflix.png" width="52" />| [How to stream video over HTTP for mobile devices? HTTP Live Streaming (HLS)](./en/38-how-to-stream-video-over-http.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709618/web-guiguio/confluent.png" width="52" />| [Designing a distributed logging system](./en/61-what-is-apache-kafka.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709677/web-guiguio/twitter.png" width="52" />| [Designing a URL shortener](./en/84-designing-a-url-shortener.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709990/web-guiguio/linkedin.png" width="52" />| [Designing a KV store with external storage](./en/97-designing-a-kv-store-with-external-storage.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709823/web-guiguio/memcached.png" width="52" />| [Designing a distributed in-memory KV store or Memcached](./en/174-designing-memcached.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709369/web-guiguio/facebook.png" width="52" />| [Designing Facebook photo storage](./en/121-designing-facebook-photo-storage.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710037/web-guiguio/robinhood.png" width="52" />| [Designing Stock Exchange](./en/161-designing-stock-exchange.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710037/web-guiguio/robinhood.png" width="52" />| [Designing Smart Notification of Stock Price Changes](./en/162-designing-smart-notification-of-stock-price-changes.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710085/web-guiguio/square.png" width="52" />| [Designing Square Cash or PayPal Money Transfer System](./en/167-designing-paypal-money-transfer.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709444/web-guiguio/stripe.png" width="52" />| [Designing payment webhook](./en/166-designing-payment-webhook.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710137/web-guiguio/grafana.jpg" width="52" />| [Designing a metric system](./en/168-designing-a-metric-system.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710354/web-guiguio/tiktok.webp" width="52" />| [Designing a recommendation system](./en/140-designing-a-recommendation-system.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710222/web-guiguio/airbnb.png" width="52" />| [Designing Airbnb or a hotel booking system](./en/177-designing-Airbnb-or-a-hotel-booking-system.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710390/web-guiguio/lyft.png" width="52" />| [Lyft's Marketing Automation Platform -- Symphony](./en/178-lyft-marketing-automation-symphony.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709990/web-guiguio/linkedin.png" width="52" />| [Designing typeahead search or autocomplete](./en/179-designing-typeahead-search-or-autocomplete.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710529/web-guiguio/nginx.jpg" width="52" />| [Designing a Load Balancer or Dropbox Bandaid](./en/182-designing-l7-load-balancer.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580708917/web-guiguio/uber.png" width="52" />| [Fraud Detection with Semi-supervised Learning](./en/136-fraud-detection-with-semi-supervised-learning.md) |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1595029150/web-guiguio/favicon-32x32.png" width="52" />| [Designing Online Judge or Leetcode](https://tianpan.co/notes/243-designing-online-judge-or-leetcode) |

#### TODO

* Designing instagram or newsfeed APIs
* Designing Yelp / Finding nearest K POIs
* Designing trending topics / top K exceptions in the system
* Designing distributed web crawler
* Designing i18n service
* Designing ads bidding system
* Designing a dropbox or a file-sharing system
* Designing a calendar system
* Designing an instant chat system / Facebook Messenger / WeChat
* Designing a ticketing system or Ticketmaster
* Designing a voice assistant or Siri


### Theories

| Product | Question | |
| -------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ | --- |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580708936/web-guiguio/instagram.png" width="52" /> | [Designing Instagram or Pinterest](./en/2016-02-13-crack-the-system-design-interview.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580708917/web-guiguio/uber.png" width="52" /> | [Designing Uber](./en/120-designing-uber.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709369/web-guiguio/facebook.png" width="52" /> | [How Facebook Scale its Social Graph Store? TAO](./en/49-facebook-tao.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709414/web-guiguio/netflix.png" width="52" /> | [How Netflix Serves Viewing Data?](./en/45-how-to-design-netflix-view-state-service.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709444/web-guiguio/stripe.png" width="52" /> | [How to design robust and predictable APIs with idempotency?](./en/43-how-to-design-robust-and-predictable-apis-with-idempotency.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709414/web-guiguio/netflix.png" width="52" /> | [How to stream video over HTTP for mobile devices? HTTP Live Streaming (HLS)](./en/38-how-to-stream-video-over-http.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709618/web-guiguio/confluent.png" width="52" /> | [Designing a distributed logging system](./en/61-what-is-apache-kafka.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709677/web-guiguio/twitter.png" width="52" /> | [Designing a URL shortener](./en/84-designing-a-url-shortener.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709990/web-guiguio/linkedin.png" width="52" /> | [Designing a KV store with external storage](./en/97-designing-a-kv-store-with-external-storage.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709823/web-guiguio/memcached.png" width="52" /> | [Designing a distributed in-memory KV store or Memcached](./en/174-designing-memcached.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709369/web-guiguio/facebook.png" width="52" /> | [Designing Facebook photo storage](./en/121-designing-facebook-photo-storage.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710037/web-guiguio/robinhood.png" width="52" /> | [Designing Stock Exchange](./en/161-designing-stock-exchange.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710037/web-guiguio/robinhood.png" width="52" /> | [Designing Smart Notification of Stock Price Changes](./en/162-designing-smart-notification-of-stock-price-changes.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710085/web-guiguio/square.png" width="52" /> | [Designing Square Cash or PayPal Money Transfer System](./en/167-designing-paypal-money-transfer.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709444/web-guiguio/stripe.png" width="52" /> | [Designing payment webhook](./en/166-designing-payment-webhook.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710137/web-guiguio/grafana.jpg" width="52" /> | [Designing a metric system](./en/168-designing-a-metric-system.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710354/web-guiguio/tiktok.webp" width="52" /> | [Designing a recommendation system](./en/140-designing-a-recommendation-system.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710222/web-guiguio/airbnb.png" width="52" /> | [Designing Airbnb or a hotel booking system](./en/177-designing-Airbnb-or-a-hotel-booking-system.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710390/web-guiguio/lyft.png" width="52" /> | [Lyft's Marketing Automation Platform -- Symphony](./en/178-lyft-marketing-automation-symphony.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580709990/web-guiguio/linkedin.png" width="52" /> | [Designing typeahead search or autocomplete](./en/179-designing-typeahead-search-or-autocomplete.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580710529/web-guiguio/nginx.jpg" width="52" /> | [Designing a Load Balancer or Dropbox Bandaid](./en/182-designing-l7-load-balancer.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1580708917/web-guiguio/uber.png" width="52" /> | [Fraud Detection with Semi-supervised Learning](./en/136-fraud-detection-with-semi-supervised-learning.md) | |
| <img src="https://res.cloudinary.com/dohtidfqh/image/upload/v1595029150/web-guiguio/favicon-32x32.png" width="52" /> | [Designing Online Judge or Leetcode](https://tianpan.co/notes/243-designing-online-judge-or-leetcode) | |

### System Design Theories

* [Introduction to Architecture](./en/145-introduction-to-architecture.md)
* [How to scale a web service?](./en/41-how-to-scale-a-web-service.md)
@@ -84,53 +81,33 @@
* [Experience Deep Dive](./en/2018-07-20-experience-deep-dive.md)
* [3 Programming Paradigms](./en/11-three-programming-paradigms.md)
* [SOLID Design Principles](./en/12-solid-design-principles.md)
* How to do capacity planning?

## 系统设计与构架 - 中文版

### 实践

* [设计一个短网址系统](./zh-CN/89-designing-a-url-shortener.md)
* [设计优步打车服务](./zh-CN/135-designing-uber.md)
* [Facebook如何存储大规模社交图谱(graph)？TAO](./zh-CN/52-facebook-tao.md)
* [什么是 Apache Kafka?](./zh-CN/62-what-is-apache-kafka.md)
* [设计Facebook图片存储系统](./zh-CN/125-designing-facebook-photo-storage.md)
* [如何使用HTTP协议向移动设备传输视频? HTTP Live Streaming (HLS)](./zh-CN/126-how-to-stream-video-over-http.md)
* [Lyft 的营销自动化平台 Symphony](./zh-CN/176-lyft-marketing-automation-symphony.md)
* [设计负载均衡器](./zh-CN/183-designing-l7-load-balancer.md)
* [设计以人为本的国际化（i18n） 工程方案](./zh-CN/184-designing-i18n-solutions.md)
* [如何设计区块链服务端的架构？](https://guigu.io/notes/235-designing-blockchain-server)

### 理论

* [构架入门](./zh-CN/151-introduction-to-architecture.md)
* [软技能面试可以谈点什么？](./zh-CN/18-soft-skills-interview.md)
* [键值缓存有哪些用法？](./zh-CN/37-key-value-cache.md)
* [如何构建大规模的网站服务?](./zh-CN/42-how-to-scale-a-web-service.md)
* [如何使用幂等性设计出高可靠的API？](./zh-CN/44-how-to-design-robust-and-predictable-apis-with-idempotency.md)
* [过往工作经验面试](./zh-CN/64-experience-deep-dive.md)
* [跳跃表](./zh-CN/71-skiplist.md)
* [布隆过滤器](./zh-CN/72-bloom-filter.md)
* [Lambda 架构](./zh-CN/86-lambda-architecture.md)
* [4种非关系型数据库（No-SQL）](./zh-CN/87-four-kinds-of-no-sql.md)
* [通过失效转移提高系统可用性](./zh-CN/88-improving-availability-with-failover.md)
* [再窥iOS架构模式](./zh-CN/127-ios-architecture-patterns-revisited.md)
* [流处理和批处理框架](./zh-CN/138-stream-and-batch-processing.md)
* [谷歌的软件工程：软件开发](./zh-CN/192-google-software-engineering.md)
* [谷歌的软件工程：项目管理](./zh-CN/193-google-software-engineering-project-management.md)
### Prepare for an Interview effectively

## Join us for further discussion!
* Introduction to software engineer interview
* How to crack the coding interview, for real?
* How to communicate in the interview?
* Experience deep dive
* Culture fit
* Be a software engineer - a hero's journey

* [Telegram: 1303 members](https://t.me/system_design_and_architecture)
* [Wechat 356 members: 加 onetptp 好友注明加系统设计群](https://tianpan.co/group/system-design-and-architecture)
* [中文电报群](https://t.me/system_design_cn)
[[Chinese Edition](./zh-CN/README.md)]

## License

GPL v3

## Who's Tian Pan?

Tian Pan has been a high-performing software engineer and engineering manager working in the San Francisco Bay Area for 10 years, previously worked at Uber, Oracle, IoTeX, and Microsoft.

## Join us for further discussion!

* [Telegram](https://t.me/system_design_and_architecture)
* [Discord](https://discord.gg/Pb5YbK3ykN)

---
## Contribute
## License

Contributions welcome!
GPL v3

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