Elasticsearch is a fast, scalable, and open-source search engine. It is widely used for a range of applications, including aggregating data from different sources, indexing and searching large datasets, and performing analytical tasks.
In this tutorial, we will guide you through the installation of Elasticsearch on the OpenSUSE latest version.
Elastic provides its packages signed with its GPG key. Before installing Elasticsearch on your system, you should import the GPG key to ensure package integrity.
To import the GPG key, run the following command:
curl https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo rpm --import
Elastic provides repositories for RedHat, CentOS, and OpenSUSE. We need to add Elasticsearch repository to our system.
To add a repository, create a new file called elasticsearch.repo in the /etc/zypp/repos.d directory using the following command:
sudo vi /etc/zypp/repos.d/elasticsearch.repo
Then, copy and paste the following contents in the file:
[elasticsearch-7.x]
name=Elasticsearch repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
Save and exit the file.
To install Elasticsearch, update the package manager and run the following command:
sudo zypper install elasticsearch
After installation, start the Elasticsearch server using the following command:
sudo systemctl start elasticsearch.service
You can check if Elasticsearch is running by running the command:
sudo systemctl status elasticsearch.service
You should see something like the following output:
● elasticsearch.service - Elasticsearch
Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; disabled; vendor preset: disabled)
Active: active (running) since Mon 2021-07-05 12:48:12 UTC; 6s ago
Docs: http://www.elastic.co
Main PID: 8616 (java)
Tasks: 21 (limit: 2310)
Memory: 2.8G
CGroup: /system.slice/elasticsearch.service
└─8616 /usr/share/elasticsearch/jdk/bin/java -Des.networkaddress.cache.ttl=60 -Des.networkaddress.cache.negative.ttl=10 -XX:+AlwaysPreTouch -Xss1m -Djava.io.tmpdir=/tmp/elasticsearch.qlnAo>
Elasticsearch configuration file is located at /etc/elasticsearch/elasticsearch.yml. You can edit the configuration file to change Elasticsearch settings.
For example, you can change the cluster name by modifying the following line in the configuration file:
cluster.name: my_cluster_name
After modifying the configuration file, restart Elasticsearch service to apply the changes:
sudo systemctl restart elasticsearch.service
To test Elasticsearch installation, you can use the Elasticsearch curl command to get the cluster health:
curl -XGET 'http://localhost:9200/_cluster/health?pretty=true'
You should see something like the following output:
{
"cluster_name" : "my_cluster_name",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 1,
"number_of_data_nodes" : 1,
"active_primary_shards" : 0,
"active_shards" : 0,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 100.0
}
This indicates that Elasticsearch is up and running.
That’s it! You have successfully installed Elasticsearch on your OpenSUSE system. You can now start using Elasticsearch for your search and analytical needs.
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