Thus, by the end of the first chapter, you have learned what Solr is, how to install and run it on various operating systems, what the various components and basic building blocks of Solr are (such as its configuration files and directory structure), and how to set up configuration files. You also learned in brief about the architecture of Solr. In the last section, we covered multicore setup in the Solr 4.x.0 series. However, the legacy method of multicore setup is going to be deprecated in the Solr 5.x release and then it's going to be only discovery mode, which is called SolrCloud.

In the next chapter, we will look deeply into the various components used in Solr configuration files, such as tokenizers, analyzers, filters, field types, and so on.