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264 high scalability-2008-03-03-Read This Site and Ace Your Next Interview!


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Introduction: Paul Tyma published a massive and massively good 96 page insider's manual on How to Pass a Silicon Valley Software Engineering Interview . My eyes immediately latched on to one of his key example scenarios, which involves scaling Facebook: Facebook ● What was Facebook day 1? – A database with a PHP front-end ● In PHP, Java, C#, whatever – How long would it take you to reproduce Facebook's first incarnation? ● A single MySQL instance with some simple queries probably used to happily query the whole userbase. Facebook ● What is it today? ● Its not about “that stuff you learned in school” – Its about what a company with thousands of (possibly conflicting) queries per second operating on a directed-graph with 50 million nodes ● And of course a few Petabytes of data ● And 99.99% uptime ● Design decision? A Facebook user is (or recently was) currently limited to 5000 friends. If you've been reading all the wisdom contributed to and reference


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1 Paul Tyma published a massive and massively good 96 page insider's manual on How to Pass a Silicon Valley Software Engineering Interview . [sent-1, score-0.421]

2 My eyes immediately latched on to one of his key example scenarios, which involves scaling Facebook: Facebook ● What was Facebook day 1? [sent-2, score-0.389]

3 – A database with a PHP front-end ● In PHP, Java, C#, whatever – How long would it take you to reproduce Facebook's first incarnation? [sent-3, score-0.293]

4 ● A single MySQL instance with some simple queries probably used to happily query the whole userbase. [sent-4, score-0.385]

5 ● Its not about “that stuff you learned in school” – Its about what a company with thousands of (possibly conflicting) queries per second operating on a directed-graph with 50 million nodes ● And of course a few Petabytes of data ● And 99. [sent-6, score-0.506]

6 A Facebook user is (or recently was) currently limited to 5000 friends. [sent-8, score-0.248]

7 If you've been reading all the wisdom contributed to and referenced by this website you might just rock this interview and put a little more money in your pocket. [sent-9, score-0.892]

8 So this site isn't a total waste of time :-) Yet I wonder how we can have 96 pages on interviewing and still not talk about software development at all? [sent-10, score-0.692]


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