Apache NiFi Registry System Administrator's Guide
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The FileSystemBundlePersistenceProvider stores the content of extension bundles on the local file system. The bundles are organized in directories according to bucket id, group, artifact, and version.

Example of persisted extension bundles:

Extension Bundle Storage Directory/
├── {bucket-id}/
   └── {group-id}/
       └── {artifact-id}
           └── {version}/{artifact-id}-{version}.{extension}
├── d1beba88-32e9-45d1-bfe9-057cc41f7ce8/
    └── org.apache.nifi
        └── nifi-example-nar
            └── 1.0.0/nifi-example-nar-1.0.0.nar
            └── 2.0.0/nifi-example-nar-2.0.0.nar


Qualified class name: org.apache.nifi.registry.provider.extension.FileSystemBundlePersistenceProvider



Extension Bundle Storage Directory

REQUIRED: File system path for a directory where extension bundle contents files are persisted to. If the directory does not exist when NiFi Registry starts, it will be created. If the directory exists, it must be readable and writable from NiFi Registry.