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by smcguinness 5187 days ago
Unless I'm reading this wrong, YouTube stores their videos in MySQL. http://highscalability.com/blog/2012/3/26/7-years-of-youtube...
1 comments

I think you are. That just means that you hit MySQL but doesn't necessarily imply that the data itself are served from MySQL. Filesystems are just fine for this task and as was already mentioned, most of the data are in the CDN anyway.