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How does indexing work at huge scales? (programming.dev)
submitted 9 months ago by to c/ask_experienced_devs@programming.dev
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Youtube would be a prime example: I'm guessing the storage required for the metadata of all videos is too large to be stored on a single server, so how do they achieve millisecond-level performance on searches and handle millions of queries routinely?

What kind of infrastructure and technology is required for this?

Do you have any resources I could use to learn more on this subject?

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[–] 2 points 9 months ago

Often it's distributed databases like Google spanner, amazon aurora, cockroach db, etc. Google has a public whitepaper on spanner you can read.

https://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf

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