Using Apache NiFiPDF version

Accessing Parameters

User privileges to Parameters are managed via access policies on the following levels:

  • Parameter Context

  • Process Group

  • Component

For a user to see Parameter Contexts, they must be added to either the "access the controller" view policy or the "access parameter contexts" view policy. For a user to modify Parameter Contexts, they must also be added to the corresponding modify policies. These policies are accessed via "Policies" from the Global Menu.

View and modify policies can also be set on individual parameter contexts to determine which users can view or add parameters to the context. Select "Parameter Contexts" from the Global Menu. Select the "Access Policies" button (
) in the row of the desired parameter context to manage these policies.

A user can only set the Parameter Context of a Process Group to one of the Parameter Contexts that the user has the view policy for. Additionally, in order to set the Parameter Context, the user must have the modify policy for the Process Group. The Process Group access policies can be managed by highlighting the Process Group and selecting the "Access Policies" button (
) from the Operate Palette.

To reference Parameters or convert properties to a Parameter in a component, a user needs to have the view and modify policies for the component. These policies are inherited if the user has view and modify policies to the component's process group, but these policies can be overridden on the component level.

In order to modify a Parameter, a user must have view and modify policies for any and all components that reference that Parameter. This is needed because changing the Parameter requires that the components be stopped/started and also because by taking that action, the user is modifying the behavior of the component.