Hadoop

http://stackoverflow.com/questions/1552421/what-is-hadoop?rq=1

http://www.technology-mania.com/2011/03/hadoop-in-standalone-mode.html

http://stackoverflow.com/questions/11548357/searching-over-documents-stored-in-hadoop-which-tool-to-use?rq=1

https://github.com/infochimps-labs/wonderdog

 

LiLy

http://docs.ngdata.com/lily-docs-current/408-lily.html

LuceneCansandara

http://blog.sematext.com/2010/02/09/lucandra-a-cassandra-based-lucene-backend/