When creating any resource with PUT or POST when using a file configuration, a corresponding metadata resource is created which contains just the size of that resource.
An example of the contents of such a metadata resource:
<http://localhost:3000/test> <http://www.w3.org/2011/http-headers#content-length> 68.
Proposed solution
Do not create this metadata resource for each new created resource. The content can be extracted from the file system anyway, so there is no need to add this to a an additonal resource anyway.