Find more resources at: http://hortonworks.com/what-is-apache-hadoop/
Hadoop lets you manage big data. In this Basic Introduction to Hadoop Video, (http://youtu.be/OoEpfb6yga8), Owen O’Malley provides an introduction to Apache Hadoop, including the roles of key and related technologies in the Hadoop ecosystem, such as: MapReduce, Hadoop Security, HDFS, Ambari, Hadoop Cluster, Datanode, Apache Pig, Hive, HBase, HCatalog, Zookeeper, Mahout, Sqoop, Oozie, Flume and associated benefits.

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