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    You are at:Home»General Articles»How to Install and Configure Elasticsearch on Fedora

    How to Install and Configure Elasticsearch on Fedora

    By RahulJune 20, 20233 Mins Read

    Elasticsearch is a highly scalable, open-source full-text search and analytics engine. It is built on Apache Lucene and allows users to store, search, and analyze large volumes of data quickly and in near real-time. In this article, we will guide you through the process of installing and configuring Elasticsearch on a Fedora system.

    Prerequisites

    1. A Fedora system
    2. Sudo or root privileges
    3. Basic knowledge of terminal commands

    Step 1: System Update

    Before installing any package, it is recommended to update your system’s package repository. Open a terminal and execute the following command:

    sudo dnf update -y 
    

    Step 2: Install Java

    Elasticsearch requires Java, so the next step is to install it. If you already have Java installed, you can skip this step.

    sudo dnf install java-11-openjdk-devel 
    

    You can verify the installation using:

    java -version 
    

    Step 3: Download and Install Elasticsearch

    Option 1: Install from the official repository

    First, import the Elasticsearch PGP key with the following command:

    rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch 
    

    Next, create a new file called elasticsearch.repo in the /etc/yum.repos.d/ directory:

    sudo nano /etc/yum.repos.d/elasticsearch.repo 
    

    Add the following lines to the file:

    1
    2
    3
    4
    5
    6
    7
    8
    [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 close the file, then install Elasticsearch with:

    sudo dnf install elasticsearch 
    

    Option 2: Install from the RPM package

    Alternatively, you can download the RPM package from the official Elasticsearch website and install it using the rpm command:

    wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.x.x-x86_64.rpm 
    sudo rpm -ivh elasticsearch-7.x.x-x86_64.rpm 
    

    Make sure to replace the 7.x.x with the actual version number.

    Step 4: Configure Elasticsearch

    You can adjust the settings of Elasticsearch by editing the /etc/elasticsearch/elasticsearch.yml file.

    sudo nano /etc/elasticsearch/elasticsearch.yml 
    

    In a production environment, you might want to adjust the following settings:

    • `network.host`: Set it to the IP address of your server.
    • `http.port`: By default, Elasticsearch runs on port 9200. You can change this if needed.
    • `cluster.name`: Name your Elasticsearch cluster. By default, it’s called “elasticsearch”.

    After you’ve made your changes, save and close the file.

    Step 5: Enable and Start Elasticsearch

    After the installation and configuration, enable Elasticsearch to start on boot, and then start the service:

    sudo systemctl enable elasticsearch 
    sudo systemctl start elasticsearch 
    

    You can check the status of the service using:

    sudo systemctl status elasticsearch 
    

    Step 6: Test Elasticsearch

    Now that Elasticsearch is running, you can perform a quick test by sending an HTTP request to port 9200 on localhost:

    curl -X GET "localhost:9200" 
    

    The output will contain information about the installed Elasticsearch, including the name, version, and more.

    Output:
    { "name" : "tecadmin", "cluster_name" : "elasticsearch", "cluster_uuid" : "HY8HoLHnRCeb3QzXnTcmrQ", "version" : { "number" : "7.9.2", "build_flavor" : "default", "build_type" : "rpm", "build_hash" : "d34da0ea4a966c4e49417f2da2f244e3e97b4e6e", "build_date" : "2020-09-23T00:45:33.626720Z", "build_snapshot" : false, "lucene_version" : "8.6.2", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search" }

    Conclusion

    n this article, we’ve shown you how to install and configure Elasticsearch on Fedora. We also discussed some basic configuration options that you can adjust according to your needs. Remember, Elasticsearch is a powerful tool that can handle huge amounts of data. Make sure to study its documentation to understand its full potential.

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