Autoloading Custom Processors

This section describes the process to use the Autoloading feature for custom processors.

To use the autoloading feature, the nifi.nar.library.autoload.directory property must be configured to point at the desired directory. By default, this points at ./extensions.

For example:

nifi.nar.library.autoload.directory=./extensions

Ensure that this directory exists and has appropriate permissions for the nifi user and group.

Now, we must place our custom processor nar in the configured directory. The configured directory is relative to the NiFi Home directory; for example, let us say that our NiFi Home Dir is /var/lib/nifi, we would place our custom processor nar in /var/lib/nifi/extensions.

Ensure that the file has appropriate permissions for the nifi user and group.

Refresh the browser page and the custom processor should now be available when adding a new Processor to your flow.