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.
Don't have a clue about the live data feed, sounds like one for someone else.
For reference, here's the old attempt to do that in the defunct pylucene code: http://bugs.musicbrainz.org/browser/search_index/branches/lucene-2.x/update?rev=9861
Fixed, but not deployed.
It was working, but is now broken since changes to indexer have not been reflected on this updater module.
And it has never been made live.
This was done some time ago, there are some bugs that are documented in separate tickets so this can be closed.