Exceeded cache size limit of 536870911 bytes

[simoncn]

The cached metadata is all the values of all the tags in your indexTags and itemTags properties.

A simpler solution would be to divide your library into different parts and use multiple contentDir folders. For example, if your library is in a single folder named /volume1/Music and you have folders under this named Rock, Classical and Jazz, you could use /volume1/Music/Rock, /volume1/Music/Classical and /volume1/Music/Jazz as contentDir folders.

You can have up to 8 contentDir folders and each of these can have a metadata cache of up to 536870911 bytes.