Pig, Hive and Sqoop Reference Links
Starting to get ramped up for the upcoming Hadoop project.
Found a good reference cheat sheet for Apache PIG.
And a good reference tutorial on Apache HIVE. With PDF Download.
Apache Derby, an Apache DB subproject, is an open source relational database implemented entirely in Java
Apache Sqoop for transferring data / files to and from HDFS using connectors run via jobs. And Sqoop Basics.
And a few tweets:
Hadoop is a valuable took that augments the traditional data warehouse. It's got some complexity, but worth the effort.