Solandra is a real-time distributed search engine built on Apache Solr and Apache Cassandra. At its core, Solandra is a tight integration of Solr and Cassandra, meaning within a single JVM both Solr and Cassandra are running, and documents are stored and disributed using Cassandra's data model. Solandra makes managing and dynamically growing Solr simple(r). For more information please see the wiki