open source search engine Lucene

http://www.bixee.com/Hospitality/jobs-in/India?e=10-15
- this indian job site mention they use open source search engine Lucene
- this shows good filtering on the left menu by city etc
- same feature can be used for "bug searches"
- lots of silicon vally tech companies use this for their code search( java, php etc.) and I saw it is blazing fast at auction gaint company

Apache Lucene is a high-performance

, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.

Applications and web applications using Lucene include (alphabetically), see below for usage of Lucene on web sites:
- Indeed.com - one search. all jobs. - the great site indeed is using it ..
- see this Bixee - Search Engine for Jobs in India.