NiFi System Properties
Also available as:

Custom Properties

To configure custom properties for use with NiFi's Expression Language:

  • Create the custom property. Ensure that:

    • Each custom property contains a distinct property value, so that it is not overridden by existing environment properties, system properties, or FlowFile attributes.

    • Each node in a clustered environment is configured with the same custom properties.

  • Update with the location of the custom property file(s):



This is a comma-separated list of file location paths for one or more custom property files.

  • Restart your NiFi instance(s) for the updates to be picked up.

Custom properties can also be configured in the NiFi UI. See the Variables Window section in the User Guide for more information.