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 nifi.variable.registry.properties with the location of the custom property file(s):

Property	Description
nifi.variable.registry.properties	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.