For our Jerome library project at the University of Lincoln (http://lncn.eu/fv4) we're using MongoDB to store catalogue, repository and journal items then we've implemented Sphinx (http://sphinxsearch.com/) on which we do the full text search, passing the results back to Mongo to retrieve full details.
We've found performance to be excellent, we can full text search over 350,000 records in hundredths of a second.
We've found performance to be excellent, we can full text search over 350,000 records in hundredths of a second.