In this article I'll walk through the steps I went through to install Solr on Ubuntu.

Step 1: Java

Check if Java is installed on your server:

java -version

Not there - then Java is the first step for you to set up for Solr.  JAVA SE 8 or Later is required to run Apache Solr 8.  Utilisation taking after order to check in the event that you have Java introduced as of now on your system.

The following the CKAN source install docs from start to finish including solr.  At this point, the site should load but you'll get solr errors.  Make the following solr updates:

Go the the directory

/etc/systemd/system

Check if there is a directory jetty9.service.d.  In my situation there was, but if it doesn't exist

Have you tried adding custom synonyms to Solr on Drupal?

How did you go?

What do you need to do to connect a custom synonym list to your Solr?

Set-up : the tools

What am I using?

Search API Synonym- https://www.drupal.org/project/search_api_synonym

Solr : 8.1

Adding basic security to your server, requires altering the security.json file.  For me this file was located

/var/solr/data/

Add a User or Edit a Password

The set-user command allows you to add users and change their passwords. For example, the following defines two users and their passwords:

What am I setting out to achieve?

I want to meet the following requirements:

Having Drupal Solr Search APi running, I thought adding synonyms to the mix would be a smooth process.

Install synonym module

I cam across a synonym module created by Jens Beltofte - Search API Synonym.  Working on a Drupal 9.3.x installation, this module needs to be accessed via Git Search API Synonym,

Setting up the admin password.

Process:

1. Edit jetty.xml

To begin you are going to edit the file “server/etc/jetty.xml”.  However, if you aren't sure of the location of jetty.xml, run the command

find / -name jetty.xml -type f

For me, the output was

Looking to install Solr on your server?  Not sure if it worth the effort?  Well, Apache Solr is the open-source, popular, super fast open source enterprise search platform from the Apache Lucene project.  Written in Java, Solr is highly scalable, providing fault-tolerant distributed search and indexing.

Let's walk through the steps I went through to install Solr on Centos 7.

Step 1: Java

Check if Java is installed on your server:

Like many devs at the moment, looking for log4j2 on your server... how to do?

First I used the command

find / -name log4j2.xml -type f

Which in turn produced the following results

/opt/solr-8.5.2/server/resources/log4j2.xml

/var/solr/log4j2.xml

Version

Ok, so log4j2 exists on the server the client is using... in Solr.  How about determining the version number?

Steps to get the Solr date range widget working.

Steps

Enable the Facets Range Widget sub-module.

Install the jQuery-ui-Slider-Pips library, as described in the README.txt file in that sub-module's folder.  After playing with this for sometime to get it working, I found the best way to install is via composer.

composer require "bower-asset/jquery-ui-slider-pips:^1.11"

However, calling this command could produce the following error