gvfsd-metadata is a daemon acting as a write serialiser to the internal gvfs metadata storage. It is autostarted by GIO clients when they make metadata changes. Read operations are done by client-side GIO code directly, and dont require the daemon to be running.
The gvfs metadata capabilities are used by the nautilus file manager, for example.
-h, --helpPrints a short help text and exits.
--versionShows the version number and exits.
-r, --replaceReplace the currently running instance.
On success 0 is returned, a non-zero failure code otherwise.
$XDG_DATA_HOME/gvfs-metadataThe directory where the gvfs metadata database files are stored