How To Install Apache Solr 9.0 on Fedora 36/35
Abstract: sudo service solr statusStep 4 – Create a New Solr Collection Apache Solr stores values under a collection. A collection is a single logical index tha
Apache Solr is an open-source search platform written on Java. Solr provides full-text search, spell suggestions, custom document ordering and ranking, Snippet generation, and highlighting.
This tutorial will help you to install Apache Solr 9.0 on Fedora 36/35/34/33/32 Linux systems.
Step 1 – PrerequsitiesApache Solr 9.0 required the Java Runtime Environment (JRE) version 11 or higher. If the system doesn’t have JRE installed, use the following command to install OpenJDK 17 on the Fedora system.
sudo dnf install java-17-openjdk
You can check the installed Java version at the command line using:
java -version
openjdk 17.0.3 2022-04-19
OpenJDK Runtime Environment 21.9 (build 17.0.3+7)
OpenJDK 64-Bit Server VM 21.9 (build 17.0.3+7, mixed mode, sharing)
Step 2 – Install Apache Solr on Fedora
Now download the required Solr version from its official site or mirrors. You may also use the below command to download Apache Solr 9.0 from its official website. After that extract the installer script.
wget https://dlcdn.apache.org/solr/solr/9.0.0/solr-9.0.0.tgz
tar xzf solr-9.0.0.tgz solr-9.0.0/bin/install_solr_service.sh --strip-components=2
Then execute the installer script with bash shell followed with downloaded Archive file. The command will be like below:
sudo bash ./install_solr_service.sh solr-9.0.0.tgz
This will create a user with the name solr in your system and finish the installation process. After that start the service default Solr port 8983.
Step 3 – Managing Apache Solr ServiceUse the following commands to Start, Stop and check the status of the Solr service.
- Start Solr service:
sudo service solr start
- Stop Solr service:
sudo service solr stop
- Restart Solr service:
sudo service solr restart
- Check the Solr service status:
sudo service solr status
Output Found 1 Solr nodes: Solr process 30891 running on port 8983 { "solr_home":"/var/solr/data", "version":"9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy - 2022-05-05 01:00:08", "startTime":"2022-05-26T07:52:42.644Z", "uptime":"0 days, 0 hours, 0 minutes, 14 seconds", "memory":"61.4 MB (%12) of 512 MB"}
Apache Solr stores values under a collection. A collection is a single logical index that uses a separate solrconfig.xml configuration file with a single index schema.
You can create a new collection using the Apache Solr command-line utility or using Solr APIs. The below command will create a new collection in Solr named mycol1.
sudo su - solr -c "/opt/solr/bin/solr create -c mycol1 -n data_driven_schema_configs"
Output: Created new core 'mycol1'Step 5 – Allow Solr Access on Public Network
The default Apache Solr runs on localhost only. To allow the Solr server publically accessible over networks, edit the /etc/default/solr.in.sh configuration file.
sudo vim /etc/default/solr.in.sh
Search for the SOLR_JETTY_HOST variable. Uncomment it by removing the starting hash (#) symbol. Set the value to 「0.0.0.0」.
Enable Apache Solr to Listen on Public NetworkSave the configuration file and restart Solr service:
sudo service solr restart
You also need to open the port in the system firewall. The below-mentioned command will open port 8983 in firewalld.
Step 6 – Access Solr Web Admin Panelsudo firewall-cmd --permanent --add-port=8983/tcp
sudo firewall-cmd --reload
The default Apache Solr runs on port 8983. You can access the Solr port in your web browser and you will get the Solr dashboard.
I already have mapped the domain solr.tecadmin.net with the Fedora server IP address.
http://solr.tecadmin.net:8983/Apache Solr Dashboard
Here you can view statics of created collection in previous steps named 「mycol1」. Click on 「Core Selector」 on the left sidebar and select created collection.
Apache Solr Collection DetailsConclusionThis tutorial helped you to install Apache Solr on the Fedora Linux system.