In Data Access, Data means the catalogs, schemas, tables, and columns in the NexusOne catalog.
A storage location is a path in an object storage bucket, which holds files.
Prerequisites
Before starting this task, ensure you have the following: Required roles:nx1_migration_admin, nx1_migration_ops, or nx1_migration_user.
Check what a user can do
- Web portal
- REST API
Perform these steps to check what a user can do.
- Log in to NexusOne.
- On the top navigation bar, hover your mouse over Govern and then select Data Access.
- Click the Check access tab.
- In the User field, select the user.
- In the Can they field, select the access level to check. For what each level includes, refer to Access levels.
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Select what to check:
- Data: Select the catalog, and optionally the schema and table.
- Storage location: Select a bucket to fill in the Location field, or enter the path in the Location field.
- Tag: Select the tag. This option appears only when a Ranger tag service is linked to NexusOne.
- Click Check. The result shows Yes or No.
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If the result is No, then a Why not section appears below the No result. Review the following:
- Why not: The reasons the user doesn’t have the access.
- Who has this access here: The roles and users that do have it. This appears only when someone has it.
- Ways to fix it: Suggested fixes. This appears only when NexusOne has a suggestion. If you can grant access, then a fix can open the Grant access tab with the grant filled in.
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Optional: If you have the
nx1_audit_viewerrole, then a Recent decisions section appears below the result. It shows what Ranger decided when the user actually used this resource:- Access: The access the user asked for.
- Policy: The policy that decided the result.
- Resource: The resource the user used.
- Result: Allowed or Denied.
- Time: When the user used the resource.
Additional resources
- For an overview of the Govern feature, refer to Govern Overview.
- To see the policies that decide the result, refer to View all policies.

