Apache Solr is an open-source search platform built on Apache Lucene. It is widely used for building search applications due to its scalability and ability to handle large volumes of data. In this guide, we will walk you through the steps to install Apache Solr on Ubuntu 22.04.

Step 1: Update Your System

Before starting the installation, ensure that your system is up-to-date:

sudo apt update && sudo apt upgrade

Step 2: Install Java

Apache Solr requires Java to run. You can install OpenJDK 11 with the following command:

sudo apt install openjdk-11-jdk

Verify the installation by checking the Java version:

java -version

Step 3: Download Apache Solr

Next, download the latest version of Apache Solr. Visit the Apache Solr download page and copy the link for the latest release. Use wget to download it:

wget https://downloads.apache.org/lucene/solr/8.11.1/solr-8.11.1.tgz

Step 4: Extract the Downloaded Archive

Once the download is complete, extract the archive:

tar xzf solr-8.11.1.tgz

Step 5: Install Solr

Navigate into the Solr directory and run the installation script:

cd solr-8.11.1
sudo bin/install_solr.sh solr-8.11.1.tgz

Step 6: Start Solr

After the installation is complete, you can start Solr using the following command:

sudo systemctl start solr

To enable Solr to start at boot, run:

sudo systemctl enable solr

Step 7: Access the Solr Admin Interface

Once Solr is running, you can access the Solr Admin interface by navigating to:

http://localhost:8983/solr/

From here, you can create collections, manage indexes, and perform searches.

Step 8: Configure Solr (Optional)

If you need to configure Solr, you can edit the configuration files located in the /var/solr/data directory. Make sure to restart Solr after making any changes:

sudo systemctl restart solr

Conclusion

You have successfully installed Apache Solr on Ubuntu 22.04. Solr is now ready to handle search queries and manage your data.

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