Apache Sqoop(TM) is a tool designed for efficiently transferring bulk data between Apache Hadoop and structured datastores such as relational databases.
如果有用Amazon EMR，可以用Sqoop轉換data至Rds。
參考：
Use Sqoop to Transfer Data from Amazon EMR to Amazon RDS
http://blogs.aws.amazon.com/bigdata/post/Tx2ZWGEI8MNGY51/Month-in-Review-June-2016
