System Design

• Dropbox Interview

  Kevin asks Wes to design Dropbox, with an emphasis on designing the data model and storage techniques to scale out.Helpful links:https://www.geeksforgeeks.org/design-dropbox-a-system-design-interview-question/https://www.youtube.com/watch?v=PE4gwstWhmchttps://developer.mozilla.org/en-US/docs/Web/API/WebSockets_APIhttps://www.ibm.com/cloud/learn/object-storage

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  32:40
• Distributed Caches

  As Kevin prepares to start a new job at Instacart, he explains some ideas around how a company like Instacart could employ caching to improve the scalability of their services.Show notes:https://medium.com/datadriveninvestor/all-things-caching-use-cases-benefits-strategies-choosing-a-caching-technology-exploring-fa6c1f2e93aahttps://ieftimov.com/post/when-why-least-frequently-used-cache-implementation-golang/https://github.com/donnemartin/system-design-primer#cachehttps://memcached.org/  https://redis.io/

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  26:05
• Message Queues

  Wes and Kevin talk about message queues, the problems they solve, and how they work. https://github.com/donnemartin/system-design-primerhttp://highscalability.com/all-time-favorites/https://netflixtechblog.com/https://www.rabbitmq.com/tutorials/tutorial-one-python.htmlP.S., Wes learned how to edit podcasts better thanks to this guide - https://podigy.co/podcast-editing-guide/, hopefully this podcast has the best audio quality yet!

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  31:07
• SQL vs noSQL Databases

  Breaking away from the interview format, Wes and Kevin deep dive into SQL vs noSQL databases.Show notes:ACID compliance - https://mariadb.com/resources/blog/acid-compliance-what-it-means-and-why-you-should-careCAP theorem https://www.ibm.com/cloud/learn/cap-theoremhttps://mwhittaker.github.io/blog/an_illustrated_proof_of_the_cap_theoremCool article explaining the problem with saying you can have 2 out of 3 properties of CAPhttp://martin.kleppmann.com/2015/05/11/please-stop-calling-databases-cp-or-ap.htmlMongoDB - https://docs.mongodb.com/manual/introduction/

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  30:14
• Facebook Timeline Interview

  Wes asks Kevin to design the Facebook/Twitter Timeline with an emphasis on scaling to a large number of users.I'd encourage you to pause where relevant to try to think through these designs yourself - it really helps the content sink in.Helpful LinksRabbitMQ quick start documentation - https://www.rabbitmq.com/getstarted.htmlApache Kafka introductinon - https://kafka.apache.org/intro

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  34:24

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