Zoie is a real-time search and indexing system built on Apache Lucene. Donated by LinkedIn.com on July 19, 2008, and has been deployed in a real-time large-scale consumer website: LinkedIn.com handling millions of searches as well as millions of updates daily. Zoie implements 2 facades: (Class Diagram) DataConsumer: Consumer of a collection of indexing events. IndexReaderFactory: As the name state