Audit Overview

Apache Ranger provides a centralized framework for collecting access audit history and reporting data, including filtering on various parameters. Ranger enhances audit information obtained from Hadoop components and provides insights through this centralized reporting capability.

Ranger plugins support storing audit data to multiple audit destinations.

The Solr audit destination is a short term audit destination (with a default TTL of 90 days) managed by Solr which can be configured by a Ranger Admin user. The Ranger Admin Web UI displays the access audit data from the audit data stored in Solr.
The HDFS audit destination is a long term audit destination for archival/compliance purposes. The HDFS audit destination has no default retention/purge period. A customer must manage the storage/retention/purge/archival of audit data stored in HDFS manually.