Free Training

Udacity – Intro to Hadoop and Mapreduce (great intro to Hadoop and Mapreduce concepts)

Cloudera Sandbox VM (with tutorial) (easy way to dive in hands on)

Spark Camp videos

Spark – Databricks resources

Hadoop Shell Commands Tutorial (more of a reference)

Edx – Intro to Big Data with Spark (oriented for true beginners)


Python Fundamentals (the best way to learn python)

SQL on Hadoop – Analyzing Big Data with Hive

Big Data – The Big Picture