23. Voldemort Kamikaze
Distributed key-value storage system Doc set compression
Zoie
Sensei
Real-time search and indexing
A distributed, elastic, real-time, searchable
system built on top of Apache Lucene
database
Bobo Azkaban
Fast faceted search with Lucene Simple hadoop workflow
Open Source Contributions
http://sna-projects.com/sna/