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Hadoop: The Definitive Guide 3rd edition

Chia sẻ: Nguyen Bao Ngoc | Ngày: | Loại File: PDF | Số trang:686

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Hadoop: The Definitive Guide 3rd edition

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We live in the data age. It’s not easy to measure the total volume of data stored electronically, but an IDC estimate put the size of the “digital universe” at 0.18 zettabytes in 2006 and is forecasting a tenfold growth by 2011 to 1.8 zettabytes.1 A zettabyte is 1021 bytes, or equivalently one thousand exabytes, one million petabytes, or one billion terabytes. That’s roughly the same order of magnitude as one disk drive for every person in the world.

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