Data Governance Support by Atlas
Both CDH and CDP environments support governance functionality for Impala operations. The two environments collect similar information to describe Impala activities, including:
- Audits for Impala access requests
- Metadata describing Impala queries
- Metadata describing any new data assets created or updated by Impala operations
The services that support these operations are different in the two
environment. Functionality is distributed across services as
follows:
Feature | CDH | CDP |
---|---|---|
Auditing | ||
|
Audit tab in Navigator console | Audit page in Ranger console |
|
Audit tab in Navigator console | Audit tab for each entity in Atlas dashboard |
|
Audit tab in Navigator console | No other audits collected. |
Metadata Catalog | ||
|
Process and Process Execution
entities Column- and table-level lineage |
Process and Process Execution
entities Column- and table-level lineage |
Migrating Navigator content to Atlas
As part of upgrading a CDH cluster to CDP, Atlas replaces Cloudera Navigator Data Management for your cluster. You can choose to migrate your Navigator metadata to Atlas as part of upgrading. Migrating content from Navigator to Atlas involves 3 steps:
- extracting the content from Navigator,
- transforming that content into a form Atlas can consume,
- importing the content into Atlas.
See Migrating Metadata from Navigator to Atlas for more information on the high-level migration process.