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# Overview

The Hadoop Documentation provides the information you need to get started using Hadoop, the Hadoop Distributed File System (HDFS), and Hadoop on Demand (HOD).

Begin with the Hadoop Quick Start which shows you how to set up a single-node Hadoop installation. Then move on to the Hadoop Cluster Setup to learn how to set up a multi-node Hadoop installation. Once your Hadoop installation is in place, try out the Hadoop Map/Reduce Tutorial.

If you have more questions, you can ask on the Hadoop Core Mailing Lists or browse the Mailing List Archives.