Knox Gateway is a system that provides a single point of secure access for Apache Hadoop clusters.
Top-to-Bottom Big Data Protection for Hadoop
Protegrity Big Data Protector allows Hadoop users to now have top-to-bottom data protection from the file to the application, going well beyond access controls and providing a comprehensive data protection path. For the first time, Hadoop users no longer have to rely on access controls. Protegrity Big Data Protector can protect data using a common security policy management architecture coupled with the industry’s most advanced strong encryption technologies.
an Apache-licensed open source security module that provides fine-grained authorization for Hadoop deployments.