At DrupalCamp LA, I talked about Drupal + Apache Solr because it is a strong search index for Drupal. I focused on the Solr aspect of it rather then the Drupal configuration components. I provide some Solr performance tuning in my presentation and a look at the security of Solr. I then evaluate the two different modules that connect with Solr — Apache Solr Search Integration module and Search API module.
Feel free to Contact Us with any questions you may have about Solr.