copied from http://bugs.musicbrainz.org/ticket/1031
Write a script that knows to download live data-feed packets and update a local lucene index, which may be actively serving requests.
Search updater doesn't update the index last-updated value returned by SEARCH-232
Indexes are now updated more frequently, search page needs updating
Newly added tracklists don't appear in the "Add Disc > Existing tracklist" UI