Installing and configuring ElasticSearch on an Ubuntu server

ElasticSearch is a high-performance search query and analytics management system. This article describes the process of installing and configuring ElasticSearch on an Ubuntu server.

Step 1: Install Java

Before installing ElasticSearch, you need to make sure you have Java installed. You can check this by running the following command:

java -version

If Java is not installed, run the following commands to install it:

sudo apt update
sudo apt install default jre
sudo apt install default jdk

Step 2: Installing ElasticSearch

1. Add key and source for ElasticSearch repository:

wget -qO -  | sudo apt key add -
sudo apt-get install apt-transport-https
echo "deb  stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-7.x.list

2. Update your package repository and install ElasticSearch:

sudo apt-get update && sudo apt-get install elasticsearch

3. Set ElasticSearch to autostart after server reboot:

sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable elasticsearch.service

Step 3: Setting up ElasticSearch

1. Open the ElasticSearch configuration file:

sudo vim /etc/elasticsearch/elasticsearch.yml

2. Find and uncomment the line network.host and set its value to the IP address of your server:

network.host: 127.0.0.1

3. Save changes and close the file.

Step 4: Run ElasticSearch

1. Start ElasticSearch with the following command:

sudo systemctl start elasticsearch.service

2. Check the status of ElasticSearch:

sudo systemctl status elasticsearch.service

If you see the message Active: active (running), the installation and configuration of ElasticSearch has been completed successfully.

Conclusion

Now you know how to install and configure ElasticSearch on an Ubuntu server. In the following articles, we will look at how to use ElasticSearch to search and analyze data.

#Elasticsearch #Search #DevOps

30.04.2023

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