Hadoop Developers & Administrators

Hadoop in Practice by Alex Holmes

Pro Hadoop by Jason Venner

Hadoop Essentials: A Quantitative Approach by Henry Liu

Apache Hadoop Yarn by Arun Murthy

Hadoop: The Definitive Guide by Tom White

Hadoop Operations by Eric Sammer

Hadoop in Action by Chuck Lam

MongoDB: The Definitive Guide by Kristina Chodorow

The Little MongoDB Book by Kyle Banker

MongoDB Applied Design Patterns by Rick Copeland

The Definitive Guide to MongoDB by Eelco Plugge