System Design Primer Course - What is CAP Theorem? Degrees of CAP theorem, use cases | System Design Tutorials | Lecture 20 | 2020

Errata: The middleware in the nodes diagram actually is network. Please read it network and not middleware. Also, quite an important detail between 16:00 to 17:30. I promise it's not fake engagement, just want to highlight it since I couldn't break the video skip ahead tabs. Useful links: https://dzone.com/articles/understanding-the-cap-theorem https://mwhittaker.github.io/blog/an_illustrated_proof_of_the_cap_theorem/ https://www.infoq.com/articles/cap-twelve-years-later-how-the-rules-have-changed/ http://groups.csail.mit.edu/tds/papers/Gilbert/Brewer2.pdf https://blog.softwaremill.com/eric-brewer-on-the-cap-theorem-tl-dr-series-83f058945e This is the twentieth video in the series of System Design Primer Course. We talk about one more important component of System Design: CAP Theorem. We want software engineers and aspiring software engineers to develop basics and get ready for the world of interviews as well as excelling as a Software Engineer. Reference: http://ksat.me/a-plain-english-introduction-to-cap-theorem ------------------------------------------------------------------ Recommendations ------------------------------------------------------------------ Our full courses on youtube: ✒ System Design Primer Course: https://youtube.com/playlist?list=PLTCrU9sGyburBw9wNOHebv9SjlE4Elv5a ✒ REST APIs made easy:https://youtube.com/playlist?list=PLTCrU9sGybupzS5-3iYTsYUI1emBDKdHu Some paid courses that we recommend: ✒Educative.io: https://bit.ly/3qnW5ku ✒Interviewready.io: https://get.interviewready.io/ (Use coupon code SUDOCODE for extra discount) ------------------------------------------------------------------ About Us ------------------------------------------------------------------ Created and Instructed by: Yogita Sharma ✒ LinkedIn - https://www.linkedin.com/in/yogita-sharma-83400b55/ ✒ Instagram - https://www.instagram.com/sudo.code1 ✒ Facebook - https://www.facebook.com/sudo.code ✒ Medium - https://medium.com/@yogita088 Post-production(editing, thumbnail etc) managed by: CiKi ✒ Website: www.ciki.co.in ✒ LinkedIn: https://www.linkedin.com/company/74735937 Colors and design by: Naini Todi ✒ LinkedIn - https://www.linkedin.com/in/nainitodi/ Both Arpit and Yogita are software engineers and want to help other software engineers become better by providing high quality and well researched content by adding their creativity and teaching twist. ------------------------------------------------------------------ Join Us ------------------------------------------------------------------ Hangout with sudoCode: ✒Discord Server: https://discord.gg/rwD2PkeAxw For business: ✒Email: [email protected] ------------------------------------------------------------------------------------------------------------------------------------ Timestamps: 0:00 - Intro 0:58 - C, A and P in distributed systems 4:43 - What is CAP theorem ? 6:21 - Disproving CAP theorem ? 9:53 - Degrees of Consistency and availability 13:25 - What to sacrifice: C, A or P ? 14:30 - What have we learnt so far ? 15:35 - Tweaking partition tolerance