We will be going through the Apache Solr architecture in the next section; for now, let's install Apache Solr on our machines. Apache Solr is a Java Servlet web application that runs on Apache Lucene, Tika, and other open source libraries. Apache Solr ships with a demo server on jetty, so one can simply run it through the command line. This helps users to run the Solr instance quickly. However, you can choose to customize it and deploy it in your own environment. Apache Solr does not ship with any installer; it has to be run as a part of J2EE Application.

Prerequisites for setting up Apache Solr

Apache Solr requires Java 1.6 or more to run, so it is important to make sure you have the correct version of Java by calling java –version, as shown in the following screenshot:

Note

With the latest version of Apache Solr (4.0 or more), JDK 1.5 is not supported anymore. Apache Solr 4.0+ runs on JDK 1.6 + version. Instead of going for the pre-shipped JDK with your default operating...