Solr search implementation in Drupal

DrupalDrupal Apache SolrApache Solr integration in Drupal

What exactly is Apache Solr?

Solr is an open search platform that provides balance queries and distributed indexing. It was built fast by the CNET, but later on, it was given to the party foundation. When Apache solr is integrated, Drupal provides an amazing experience. Many big companies such as Instagram, Twitter, and Netflix use Apache Solr.

What are the features of utilizing Apache Solr?

Many e-commerce websites, such as Instagram contractor and Netflix, use Solr to get fast search results. Apart from this, there are many features of using Apache Solr. A few of them are listed below:

  • Faceted navigation
  • Spell suggestion
  • Auto completing
  • Complete text search
  • Related searches
  • Various recommendations
  • Customer document ranking

Snippet generation Now the question arises of why there is a need to use SOLR.

It has great control over the website search fast indexing in which the index is optimized and merged. Replication, distributed, and caching search is provided.

How to implement Solr in Drupal?

The use of integrating Solr and Drupal is completed in the steps given below:

  • Installation of Drupal Module
  • Installation of Apache Solr
  • Configure both modules together
  • Create a web search page

1. Installation of Drupal module

Drupal is an open search source that provides a search API that can be used to integrate Apache Solr with the Drupal platform. The Search API module integrates Drupal with the Apache Solr search platform and provides a Solr backend for the Search API Module. Install the Search API Module in your site using Composer using the below command.

composer require 'drupal/search_api_solr:^4.2'

Go to Extend -> filter(Search Api Solr) -> install it.

2. Installation of Apache Solr

The first thing to do is to download Apache Solr. The Apache Solr depends on Java, so to install this Apache, you must install java first. People who haven’t used Java earlier might need to install it first in their system using some coding.

After that, verify the Java version installed to activate it. Apart from this, if you want to download Apache Solr, you can get it from their official website. After the installation is completed, extract Apache Solr files and start the installation process. After completing all these steps, Solr will be downloaded into the system.

If you wish to stop the services of Solr, then you need to use different commands such as stop, start, and many similar commands. After that, open the application to see if it is running properly. For this purpose, various commands are used, which will allow you to see if the Solr is working properly.

Here are the steps: I- You can download the latest Apache Solr version from its official site.

Download the solr-8.11.2 tgz[PGP][SHA512] file.

II- Now, Extract the Apache Solr file and copy to the laragon\www file.

III- Now Solr should be installed on your system. You can use these commands to start, stop and check the status of Solr service.

Solr star.

Solr stop -p (port number).

Solr status.

Default Solr runs on port 8983. You can access your Solr admin panel by typing localhost:8983 in your browser.

3. Configure the Drupal Module with the Apache Solr

The next track is the configuration of the Apache Solr and Drupal modules. Here are some easy steps you can follow to Configure the Drupal Module with the Apache Solr After Installation of the Solr, you need to create a core in the Solr.

Create the core using the command You can create core using the solr create core command this command has the following option:

               -c core_name              Name of the core you wanted to create.

               -p port_name               Port at which you want to create the core.

               -d conf_dir                   Configuration directory of the port.


You can use laragon\www\solr-8.11.2\bin>solr create -c MySolr creating core.

This command will differ depending on where Solr is installed.

You can see the created core in the Solr Admin panel

4. Set up the Search Index/Create a Solr Server & Index.

After the Drupal 8/9 and Apache configuration, you need to understand the use of Search API. For this, search for the configuration and go to metadata. After that, look for the API, and there you will find the option to Add an index.

Before this, you can follow the sequence of these steps:

Index name: The first thing to do is add an Index name according to your choice. Apart from this, you can also use multiple indexes. In it, you can add multiple entities, such as users and comments.1- Add Server

1. Go to Configuration > Search and MetaData > Search API > Click on Add server

2. When you click on the Add server, you will get the form you need to fill that form.

I- Server Name: Enter the Server name

II- Enable: check the enable checkbox. If you don’t enable it, you can’t index the item

III - Description: A brief description of the server

IV - Backend: choose your backend

3. Next, you need to configure the Solr backend. Click on the Configure Solr backend.

4. When you click on the standard, you will get the form you need to fill the form.

HTTP protocol - HTTP

Solr Host- localhost

Solr port- 8983

Solr path- /

Solr core - MySolr

5. Add Index

Go to Configuration > Search and MetaData > Search API > Click on Add Index.

Index Name: Enter an index name 

6. Data sources: Here you need to select the Data Sources to index the item for the search functionality.

Select bundles according to your need.

7. Server: Select the server to index the items

8. Click the save and add field button

9. Click on the Add Field

10. You need to add a field you need

11. After adding the field, click on done then save.

12. Now the Index and Server are created on the website.

13. After this download the config files from the server on the website.


14.  Extract the file and copy on the conf file to solr core

Error: If you have a 0/0 indexing problem and 

solr core name: no information available.

You need to create another core in the Solr admin panel using cmd.

15. Add a new server add a new index and index file then download the get file and copy on conf file to solr core

16. Go to Configuration -> Search and Metadata -> Search API and click on the index that you have created.

17. Click the Index now button.

18. Now all the contents are indexed in the Solr core.

5. Create a Search Page/ view for the index

Lastly, you need to create a search page. To create the search page, look for the API module to help create fast, customized, and simple search pages. 

For this, search for the configuration and go to metadata. After that, look for the API, and there you will find the option of Add Search page.

Confusing? Follow these steps: 

You can create a view of the Solr index and add the indexed fields to the view to get the results from the Drupal 9 Solr.

1.  Go to Structure > view > add view

View Name: Enter view name.

Show: Select the show related to your index name.

Page setting: create a page 

2. Click on Save and edit button.

3. After this you need to add fields regarding your requirement And add Filter on one field.

4. Go to your created view page. you can see your Search API Solr on your website.  

Summing Up

In Conclusion, we can say that a few steps are needed to be completed to integrate Apache Solr with Drupal. First, you need to install the Drupal modules. Similarly, install Apache Solr and integrate both by following the above steps. 

To manage your website, you can also enlist the aid of LN Webworks, a Drupal agency. Through Drupal, we are assisting small and medium-sized businesses in creating a seamless experience.

Reach out to us right away to go over the specifics of your project.

Author Information
Shikha Kumar
Drupal Expert

Shikha Kumar is Drupal Certified Developer having 7 years of experience. She leads the various development departments at LN webworks. She focuses on driving engineering and product development strategy to deliver industry-leading solutions. Over her career Shikha Kumar has driven development for products including Drupal based Enterprise solutions, ecommerce platforms and mobile solutions.

As, She has developed hundreds of ecstatically, functional, user-friendly Custom websites covering diverse industries such as Educational institutions, Real-estate, E-Commerce, Traveling, Financial, Affiliate Marketing, Medical institutions, and so on….Therefore, She is capable of handling any kind of work with the guarantee of well-structured and clean Code development.

Get in touch with us to discuss your requirements!

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