In this tutorial we'll walk through downloading and installing the Search API module, the Search API Solr module, and their dependencies. Then we'll look at using the Search API Solr configuration files with our Solr server. These configuration files are specially crafted to help with indexing data contained in a Drupal site and allow Solr to have a better understanding of Drupal's entities, fields, and the data that they contain. For example, mapping a Drupal Field API body field on a page node type to the appropriate field type in Solr.
The gist of this tutorial is, locating the Solr configuration files in the
search_api_solr/solr-conf/ directory, talking a little bit about what each one does, and then demonstrating how to copy those files into the configuration for your Solr server so that Solr will start using them.
After looking at the various configuration files, and then placing them into our Solr instance, we'll connect Drupal to our Solr server by creating a new Search API server configuration within Drupal's UI. This will allow us to confirm that our Apache Solr server, and Drupal, will be able to talk to one another.
By the end of this tutorial you should be able to configure Solr to work with Drupal, connect the two, and verify that the connection is working.