At the core Infinispan is an in-memory data grid with options for multi node replication or distribution. It is also able to index and search stored data using Apache Lucene, or inverting the roles to have Lucene store any index in the grid. This talk will illustrate how to get started and what benefits (or drawbacks!) you get by storing your Lucene indexes in Infinispan. http://berlinbuzzwords.de/sessions/what-you-get-replicating-lucene-indexes-infinispan-data-grid