I have XPM configured and can see temporary files being created on the filesystem and also session items being created in the session preview DB. After some time, the items get cleaned up from the DB table(s), but the sessionpreview-files remain on the filesystem. I have already checked question How can I get Experience Manager Session Preview temporary files to be tidied up?, but no luck there.
My questions are:
1. which process/service should clean up the temporary previewsession-files on the filesystem? As I see it, the web.xml contains a SessionManagementContextListener that gets invoked on session expiration, and should remove the file(s)?
2. any ideas about the probable cause of this issue?