Introduction

OpenSearch is a community-driven search and analytics suite that is derived from Elasticsearch and Kibana. It provides a powerful platform for real-time data analysis and full-text search capabilities. This guide will walk you through the installation of OpenSearch on Rocky Linux 9, which can be effectively utilized on a Windows VPS UK for robust performance and reliability.

Prerequisites

• A Rocky Linux 9 server with root access
• Basic knowledge of Linux commands
• Java Development Kit (JDK) installed (OpenJDK recommended)

Step 1: Update Your System

Before installation, ensure your system is up to date:

sudo dnf update -y

Step 2: Install OpenJDK

If you do not have Java installed, you can install OpenJDK with the following command:

sudo dnf install java-11-openjdk-devel -y

Verify the installation:

java -version

Step 3: Download OpenSearch

Download the latest version of OpenSearch. You can find the latest version on the official OpenSearch downloads page. Use the following commands to download and extract OpenSearch:

wget https://artifacts.opensearch.org/releases/bundle/opensearch/2.3.0/opensearch-2.3.0-linux-x64.tar.gz
tar -xzf opensearch-2.3.0-linux-x64.tar.gz

Step 4: Configure OpenSearch

Navigate to the OpenSearch directory and edit the configuration file:

cd opensearch-2.3.0/config
nano opensearch.yml

In this file, you can configure various settings such as cluster name, node name, and network settings. For example:

cluster.name: my-cluster
node.name: my-node
network.host: 0.0.0.0

Step 5: Start OpenSearch

To start OpenSearch, navigate back to the OpenSearch directory and run the following command:

./opensearch-tar-install.sh

This script will start OpenSearch, and you can monitor the logs in the logs directory.

Step 6: Configure Firewall

If you have a firewall enabled, make sure to allow traffic on the OpenSearch port (default is 9200):

sudo firewall-cmd --add-port=9200/tcp --permanent
sudo firewall-cmd --reload

Step 7: Access OpenSearch

Open your web browser and navigate to http://your_server_ip:9200. You should see a response from OpenSearch indicating that it is running:

{
  "name" : "my-node",
  "cluster_name" : "my-cluster",
  "cluster_uuid" : "xxxxxx",
  "version" : {
    "number" : "2.3.0",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "xxxxxx",
    "build_date" : "2023-06-01T00:00:00Z",
    "build_snapshot" : false,
    "lucene_version" : "9.4.1"
  }
}

Step 8: Conclusion

You have successfully installed OpenSearch on Rocky Linux 9, providing a powerful platform for search and analytics. This setup is especially effective when deployed on a Windows VPS. For further options, explore various VPS UK Windows solutions, including Windows Virtual Private Server Hosting and Windows VPS Hosting UK for optimal performance.