SQL to Hadoop

"More organizations, small and large, are interested in moving their data from SQL relational databases to an Apache Hadoop back end. Although SQL is always a solid option in many cases, Hadoop has advantages in data processing that are battle-tested by several major web properties. These days it seems that Hadoop is the best game in town for "Big Data" handling. For users that want to either experiment with Hadoop or put it into production-use, there are a couple of tools available for migrating SQL data to Hadoop. They include: Cloudera's Sqoop, cascading.jdbc, and cascading-dbmigrate." - see details here