Last year, I was designing security for a client who was looking for a reference book that talked about security implementations in the Hadoop arena, simply so he could avoid known issues and pitfalls. To my chagrin, I couldn’t locate a single book for him that covered the security aspect of Hadoop in detail or provided options for people who were planning to secure their clusters holding sensitive data! I was disappointed and surprised. Everyone planning to secure their Hadoop cluster must have been going through similar frustration. So I decided to put my security design experience to broader use and write the book myself.

As Hadoop gains more corporate support and usage by the day, we all need to recognize and focus on the security ...

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