For background information about the Lucene index, see Understanding Indexing in Advanced Installation and Reconfiguration in the Kablink Vibe 4 Installation Guide.
Understanding Indexing
Advanced Installation and Reconfiguration
Section 23.1, Starting and Stopping the Lucene Index Server
Section 23.2, Changing Your Lucene Configuration
Section 23.3, Optimizing the Lucene Index
Section 23.4, Rebuilding the Lucene Index