Finding a Needle in Haystack: Facebook's Photo Storage http://ift.tt/1OTTZ1B...

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Finding a Needle in Haystack: Facebook's Photo Storage
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The Photos application is one of Facebook’s most popular features. Up to date, users have uploaded over 15 billion photos which makes Facebook the biggest photo sharing website. For each uploaded photo, Facebook generates and stores four images of different sizes, which translates to a total of 60 billion images and 1.5PB of storage.

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