I first encountered Hadoop in the fall of 2008 when I was working on an internet crawl and analysis project at Verisign. My team was making discoveries similar to those that Doug Cutting and others at Nutch had made several years earlier regarding how to efficiently store and manage terabytes of crawled and analyzed data. At the time, we were getting by with our home-grown distributed system, but the influx of a new data stream and requirements to join that stream with our crawl data couldn’t be supported by our existing system in the required timelines
