Here is found details of the locations and purposes of the Fedora 4 configuration files. For details on how to enable and configure these options, see this page.


Fedora RESTful HTTP API uses the open source Jersey RESTful Web Services framework that provides support for JAX-RS APIs and serves as a JAX-RS (JSR 311 & JSR 339) Reference Implementation. The jersey servlet dispatcher is configured in web.xml as follows:



The following spring files exist in a directory as configured in web.xml, which contains a context-param element with param-name "contextConfigLocation".  The param-value points to a spring context configuration file "WEB-INF/classes/spring/repository.xml". This configuration file imports a settings file located in the same directory or the file specified by system property fcrepo.spring.configuration. Note that these files are in the source tree under fcrepo-webapp/src/main/resources/spring and copied to WEB-INF/classes upon build.



  <!-- Master context for fcrepo4. -->
  <import resource="${fcrepo.spring.configuration:classpath:/spring/fcrepo-config.xml}"/>


This is where you configure your Fedora instance, including:

It is recommended to use the provided fcrepo-config.xml as a starting point for your customization.






Modeshape repository configuration

Fedora 4 uses Modeshape, a JCR implementation. We distribute a handful of known-good configurations for Modeshape, although we anticipate configuration tuning for deployment environments will be common.

Repository Config Options

These configuration files are copied to WEB-INF/classes from fcrepo-configs/src/main/resources upon build.







Fedora 4 will store object properties to the configured backend datastore. These probably won't be very large, and should be stored on fast disk. The object properties are stored as binary JSON documents within the given cache store configuration.

Binary storage

Fedora 4 stores binary content separately (to one of the above paths, depending on configuration). These files are stored hashed by the content SHA-1 hash. 

Parallel stream processing


If you are running Fedora on a multiprocessor machine you can level parallel processing across single requests by turning this option on.   Parallel processing of streams can boost the retrieval speeds of the RDF associated with objects with large numbers of inlinks (ie dependent objects with memberOf associations).  Enabling this option in conjunction with increasing with cacheSize parameter in your repository.json file can boost retrieval speeds significantly.

Skolemizing to Hash-URIs


With this property set to 'true', Fedora will skolemize incoming blank nodes to hash-URIs (with UUID fragments) on the base URI to which the request was addressed. By default this feature is turned off for backwards compatibility.