Atlas uses Titan as its its metadata storage and indexing repository. Titan supports BerkeleyDB and HBase as its storage backend. It supports ElasticSearch (embedded) and Solr as its indexing backend. For more information, see Choosing Between Storage Backends and Choosing Between Indexing Backends below.

All Titan configurations are set in the application.properties file, located in the /conf directory at the location where Atlas is deployed. The application.properties file contains sections where you can set the following: