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<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V2.0//EN" "http://forrest.apache.org/dtd/document-v20.dtd">
<document>
<header>
<title>Overview</title>
</header>
<body>
<p>
The Hadoop MapReduce Documentation provides the information you need to get started writing MapReduce applications.
Begin with the <a href="mapred_tutorial.html">MapReduce Tutorial</a> which shows you how to write MapReduce applications using Java.
To write MapReduce applications in languages other than Java see <a href="streaming.html">Hadoop Streaming</a>, a utility that allows you to create
and run jobs with any executable as the mapper or reducer.
</p>
<p>
MapReduce works in tandem with a cluster environment and a distributed file system.
For information about Hadoop clusters (single or multi node) see the
<a href="http://hadoop.apache.org/common/docs/current/index.html">Hadoop Common Documentation</a>.
For information about the Hadoop Distributed File System (HDFS) see the
<a href="http://hadoop.apache.org/hdfs/docs/current/index.html">HDFS Documentation</a>.
</p>
<p>
If you have more questions, you can ask on the <a href="ext:lists">Hadoop MapReduce Mailing Lists</a> or browse the <a href="ext:archive">Mailing List Archives</a>.
</p>
</body>
</document>