Do you have any concerns about ElasticSearch setup on your Linode server? We’re here to help you.

At Bobcares, we offer solutions for every query, big and small, as a part of our Server Management Service.

Let’s take a look at how our Support team helped a customer deal with this issue.

Elasticsearch setup in Linode

Elasticsearch is a scalable, open-source search engine. Even though elasticsearch comes with a lot of features out of the box, it can also be expanded with plugins to provide advanced analytics and process different types of data.

It comes with a multitenant full-text search engine, an HTTP web interface, and schema-free JSON documents, all of which are simple to set up.

Furthermore, it acts as the heart of the Elastic Stack, storing our data for lightning-fast search, fine-tuned relevancy, and scalable analytics. We can perform and combine many different types of searches with Elasticsearch, giving us the flexibility to work however we want.

Installation of Elasticsearch in Linode

Java

Elasticsearch requires Java 8 as of this writing.

• The official repositories of OpenJDK 8 are available. Install the OpenJDK 8 headless package as follows:

  sudo apt install openjdk-8-jre-headless

• Check to see if Java is installed:

  java -version

Elasticsearch

• Firstly, download and install the Elastic APT package signing key:

  wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -

• Secondly, Install the apt-transport-https package to get deb packages served over HTTPS:

  sudo apt-get install apt-transport-https

• Add the APT repository information to the list of sources on the server:

  echo "deb https://artifacts.elastic.co/packages/6.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic.list

• Update the list of packages that are available:

  sudo apt-get update

• Install the elasticsearch package by following these steps:

  sudo apt-get install -y elasticsearch

• Set the JVM heap size to about half of the available memory on the server.

  For instance, Change the Xms and Xmx values in the /etc/elasticsearch/jvm.options file to 512m if the server has 1GB of RAM. Leave the other values in this file by themselves.

• Enable and start the elasticsearch service:

  sudo systemctl enable elasticsearch sudo systemctl start elasticsearch

• After a few moments of waiting for the service to start, check that the Elasticsearch API is available:

  curl localhost:9200

  After that, the Elasticsearch REST API should return a JSON response

• To determine whether or not the service has started successfully, view the most recent logs:

  systemctl status elasticsearch

We are now ready to install and use Elasticsearch plugins.

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Conclusion

In short, our skilled Support engineers at Bobcares demonstrated how to set up Elasticsearch in Linode.