What is the purpose of the DefaultMediaCacheRegion? I could not find any documentation about this in the Hybris Wiki.
If I understand the configuration correctly, it is for caching the media file contents (not their items). Is that correct? What would be the purpose behind this, since usually the operation system's filesystem cache (or NFS cache) would handle the caching anyway? When should this be used on a production system?
What do I need to do to enable the usage of this cache? I see that it exists and that it has a certain max size, but I've never seen that anything is cached in it; it is always empty.