Chapter 17. Persistence

Red Hat JBoss Fuse containers store all of their persistent caches relative to its start location. It will create a data folder in the directory from which you launch the container. This folder is populated by folders storing information about the message broker used by the container, the OSGi framework, and the JBI container.

The data folder is used by the JBoss Fuse runtime to store persistent state information. It contains the following folders:

By default, the bundle cache is stored in InstallDir/data/cache.

To specify an alternative location, modify the org.osgi.framework.storage property in config.properties.

If you use a relative path, the cache location is added to the root of the JBoss Fuse installation directory.

You can configure JBoss Fuse to flush the bundle cache every time the runtime starts by setting the org.osgi.framework.storage.clean property to onFirstInit in config.properties. This property is set to none by default.

The generated-bundle cache is where the container caches bundles it creates to support JARs that are not supplied as OSGi bundles.

You can configure the location of this cache by changing the felix.fileinstall.tmpdir property in the org.apache.felix.fileinstall-deploy.cfg file.

The felix.cache.bufsize property controls the size of the buffer used to copy bundles into the bundle cache. Its default value is 4096 bytes.

You can adjust this property by editing its value in the config.properties configuration file. The value is specified in bytes.