How To Install Apache Solr on CentOS 7

apache-solr-logo

In this tutorial, we will show you how to install and configuration of Apache Solr on your CentOS 7 server.  For those of you who didn’t know, Apache Solr is an open-source search platform written on Java. It is based on Apache Lucene and is written in Java. Just like Elasticsearch, it supports database queries through REST APIs. Solr aims at providing distributed indexing, replication, and load-balanced querying with automated failover and recovery.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple. I will show you through the step by step installation Apache Solr in CentOS 7.

Install Apache Solr on CentOS 7

Step 1. First, let’s start by ensuring your system is up-to-date.

Step 2. Install the latest available version of Java on your server.

Checking Installed java version:

Step 3. Installing Apache Solr.

The first thing to do is to go to Apache Solr’s download page and download the latest stable version of Apache Solr, At the moment of writing this article it is version 5.4.0:

Unpack the Apache Solr archive to the document root directory on your server:

Step 4. Create a script for handling the Solr server service.

Create a systemd service for Solr or if you are used to the old init scripts, you can keep using them. Create an init script for the Solr service:

Save the file and make it executable:

You can now start Solr using the following command:

You should also be able to use the ‘service’ command to start, stop and restart Solr:

Step 5. Configure Iptables or Firewall.

If you use iptables add a rule to allow access to Solr’s admin section and query Solr data:

Step 6. Accessing Apache Solr.

Apache Solr will be available on HTTP port 8983 by default. Open your favourite browser and navigate to http://yourdomain.com:8983/solr/  or http://server-ip:8983/solr/.

solr-web-admin
Apache Solr

Congratulations! You have successfully installed Apache Solr. Thanks for using this tutorial for installing Apache Solr on your CentOS 7 system. For additional help or useful information, we recommend you to check the official Apache Solr website.

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