Databricks Community

DeltaTrain · ‎08-09-2023

Hello Databricks Community,

I'm reaching out with a query regarding access control in the hive_metastore. I've encountered behavior that I'd like to understand better and potentially address.

To illustrate the situation:

I've set up three users for testing purposes: admin, dataengineer1, and dataanalyst1.
The admin user granted permissions to dataengineer1 for three specific tables: circuits, country_regions, and results.

Case 1: When using SQL Warehouse (as seen in the screenshot, labeled as serverless-sql-wh) or a Cluster with shared Access mode, dataengineer1 can only view the tables they have permissions for. This is the expected behavior.

Case 2: However, when a Single User Access mode cluster is activated (in the screenshot, labeled as dataengineer1@d...), dataengineer1 can view all schemas and tables. This is not the desired behavior.

I'm hoping to find a solution that ensures even in Single User Access Mode, users can only access Schemas and Tables for which they have permission.

Any insights or suggestions would be greatly appreciated. I value the expertise of this community and look forward to your responses.

Thank you

Debayan · ‎08-21-2023

Hi, could you please elaborate on the permissions on the cluster and who has deployed it? Also, please refer to the limitations here: https://docs.databricks.com/en/clusters/configure.html#assigned-limitations

Please tag @Debayan with your next comment, which will get me notified. Thanks!

DeltaTrain · ‎08-22-2023

Hi @Debayan, thank you for your reply.

with hive_metastore, still I cannot get the level of isolation, which means that if anyone activates the Single node cluster, she/he can see all the catalog, schema, and table.

However, with Unity catalog application, I can get the level of isolation that I want. So rather than trying to find any solution with hive_metastore, I will switch to Unity Catalog application.

thanks!