Atlas is a scalable and extensible set of core foundational governance services – enabling
enterprises to effectively and efficiently meet their compliance requirements within Hadoop and
allows integration with the whole enterprise data ecosystem.
Apache Atlas provides open metadata management and governance capabilities for organizations
to build a catalog of their data assets, classify and govern these assets and provide collaboration
capabilities around these data assets for data scientists, analysts and the data governance team.
Features
Metadata types & instances
Pre-defined types for various Hadoop and non-Hadoop metadata
Ability to define new types for the metadata to be managed
Types can have primitive attributes, complex attributes, object references; can inherit from other types
Instances of types, called entities, capture metadata object details and their relationships
REST APIs to work with types and instances allow easier integration
Classification
Ability to dynamically create classifications - like PII, EXPIRES_ON, DATA_QUALITY, SENSITIVE
Classifications can include attributes - like expiry_date attribute in EXPIRES_ON classification
Entities can be associated with multiple classifications, enabling easier discovery and security enforcement
Propagation of classifications via lineage - automatically ensures that classifications follow the data as it goes through various processing
Lineage
Intuitive UI to view lineage of data as it moves through various processes
REST APIs to access and update lineage
Search/Discovery
Intuitive UI to search entities by type, classification, attribute value or free-text
Rich REST APIs to search by complex criteria
SQL like query language to search entities - Domain Specific Language (DSL)
Security & Data Masking
Fine-grained security for metadata access, enabling controls on access to entity instances and operations like add/update/remove classifications
Integration with Apache Ranger enables authorization/data-masking on data access based on classifications associated with entities in Apache Atlas. For example:
who can access data classified as PII, SENSITIVE
customer-service users can only see last 4 digits of columns classified as NATIONAL_ID