Presented By O'Reilly and Cloudera
Make Data Work
September 25–26, 2017: Training
September 26–28, 2017: Tutorials & Conference
New York, NY

An authenticated journey through big data security at Walmart

Matt Bolte (Walmart), Toni LeTempt (Walmart)
1:15pm1:55pm Wednesday, September 27, 2017
Location: 1E 14 Level: Beginner
Average rating: ***..
(3.75, 4 ratings)

Who is this presentation for?

  • Hadoop and big data security administrators

Prerequisite knowledge

  • Basic knowledge of Hadoop ecosystem components and configuration

What you'll learn

  • Explore Walmart's authentication journey
  • Learn how to successfully enable Kerberos authentication with Active Directory integration for your Hadoop clusters


In today’s world of data breaches and hackers, security is one of the most important components for big data systems, but unfortunately, it’s usually the area least planned and architected. Security is often an afterthought or is seen as a barrier to speedy implementation. At the same time, authentication in Hadoop can be messy and intimidating. Multiple components are involved, such as Kerberos and Active Directory, and often one or both of these tools are managed outside of the Hadoop admin’s control.

Matt Bolte and Toni LeTempt share Walmart’s authentication journey, focusing on how decisions made early can have significant impact throughout the maturation of your big data environment. Along the way, Matt and Toni demonstrate how to use Kerberos and Active Directory to provide secure authentication to your cluster and share tips, best practices, and troubleshooting insights for both Kerberos and Active Directory Hadoop issues.

Photo of Matt Bolte

Matt Bolte


Matt Bolte is a Principal Software Engineer at Walmart. Matt has 19 years’ IT experience, five of them working with large secure enterprise Hadoop clusters.

Photo of Toni LeTempt

Toni LeTempt


Toni LeTempt is a senior technical expert at Walmart. Toni has 18 years’ IT experience, five of them working with large secure enterprise Hadoop clusters.