GN4 allows you to choose among a variety of search engines.
Since the version 2.3, the Solr search engine is available and recommended, while alternatives are Microsoft SQL search engine (since version 2.0) and MySQL search engine (since version 2.1). In versions 2.2 and earlier, the Exalead search engine was available too. In versions 1.6 and earlier, the Exalead search engine was the only available for the full-text search.
The implementation of all the search engines available for GN4 shares the same user interface on the GN4 side, but some functionalities may be present or absent, depending on the search engine.
This chapter explains architecture, how to configure schema and basic configuration methods.
Use the Table of Contents to find information. See also Using table of contents in help.