June 2009
Intermediate to advanced
524 pages
16h 12m
English
Content preview from Hadoop: The Definitive GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Foreword
Hadoop got its start in Nutch. A few of us were attempting to build an open source web search engine and having trouble managing computations running on even a handful of computers. Once Google published its GFS and MapReduce papers, the route became clear. They’d devised systems to solve precisely the problems we were having with Nutch. So we started, two of us, half-time, to try to recreate these systems as a part of Nutch.
We managed to get Nutch limping along on 20 machines, but it soon became clear that to handle the Web’s massive scale, we’d need to run it on thousands of machines and, moreover, that the job was bigger than two half-time developers could handle.
Around that time, Yahoo! got interested, and quickly put together a team that I joined. We split off the distributed computing part of Nutch, naming it Hadoop. With the help of Yahoo!, Hadoop soon grew into a technology that could truly scale to the Web.
In 2006, Tom White started contributing to Hadoop. I already knew Tom through an excellent article he’d written about Nutch, so I knew he could present complex ideas in clear prose. I soon learned that he could also develop software that was as pleasant to read as his prose.
From the beginning, Tom’s contributions to Hadoop showed his concern for users and for the project. Unlike most open source contributors, Tom is not primarily interested in tweaking the system to better meet his own needs, but rather in making it easier ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.