Apache Software Foundation is announcing that Apache Sentry with version number 1.6.0 is already available to download.

What is Apache Sentry ?

Apache Sentry is A powerful system developed at the Apache Foundation to support and enforce a fine grained role based authorization system for Hadoop clusters . Apache Sentry improves the overall security of data and metadata stored on an Apache Hadoop database. This allows developers to secure their databases against unauthorized access and use an alternative security system to regular HTTP safety measures.Sentry is not a full-blown Hadoop firewall, but it surely comes close to it.Out of all the Hadoop stack, only Apache Hive is currently supported. This is changelog for Apache Sentry version 1.6.0 :

• Create a diagnostics tool for configuration validation
• Implement a DB backed policy store
• Give bindings the ability to access the group mappings
• Support filter pushdown in DB Store client to reduce data transfer from DB Store service

You can read the complete changelog and also download this latest version on their homepage: sentry.incubator.apache.org