In this tutorial, we will show you how to install Elasticsearch on Debian 10. For those of you who didn’t know, Elasticsearch is a flexible and powerful open-source, distributed real-time search and analytics engine. It supports RESTful operations and allows you to store, search, and analyze big volumes of data in real-time. Elasticsearch is one of the most popular search engines powering applications that have complex search requirements such as big e-commerce stores and analytic applications.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Elasticsearch on a Debian 10 (Buster) server.
Install Elasticsearch on Debian 10
Step 1. Before we install any software, it’s important to make sure your system is up to date by running these following apt commands in the terminal:
Step 2. Installing Java.
Run commands to install the Java on Debian system:
Verify the Java installation by printing the Java version:
First, add the Elasticsearch repository:
wget-qO-https://artifacts.elastic.co/GPG-KEY-elasticsearch | apt-key add -
Next, add the Elasticsearch repository to the system by issuing:
echo"deb https://artifacts.elastic.co/packages/6.x/apt stable main"|tee-a/etc/apt/sources.list.d/elastic-6.x.list
Now run apt update then install Elasticsearch package on your Debian system:
When the installation process is complete, start and enable the service using the following commands:
We have an active installation for Elasticsearch now. To use Elasticsearch effectively, we can some important changes to the configuration. Run the following command to open the ES config file:
Change the following values:
- network.host – Set the network host to 0.0.0.0 to listen on all interfaces and make it publically available. You can use your LAN address for LAN access only.
- cluster.name – Name of the cluster. For the multi-node cluster, all the nodes must use the same cluster name.
- node.name – Set the unique name of the node to identify in a cluster.
Restart the Elasticsearch service for the changes to take effect:
The Elasticsearch service is ready to use. You can test it using curl command-line utility. Run the simple GET command using curl to verify the setup. You will see the Elasticsearch cluster details with the version on your screen:
"tagline":"You Know, for Search"
Congratulations! You have successfully installed Elasticsearch. Thanks for using this tutorial for installing Elasticsearch on Debian 10 (Buster) system. For additional help or useful information, we recommend you to check the official Elasticsearch website.