Installation and setup in Elasticsearch - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the first step to install Elasticsearch on your machine?

Download the Elasticsearch package from the official website or use a package manager suitable for your operating system.

beginner

Which command starts the Elasticsearch service after installation?

You can start Elasticsearch by running ./bin/elasticsearch from the installation directory or using system service commands like systemctl start elasticsearch on Linux.

beginner

Why is it important to check Java version before installing Elasticsearch?

Elasticsearch requires a compatible Java version to run. Checking ensures your system has the right Java environment to avoid errors during startup.

intermediate

What file do you edit to configure Elasticsearch settings after installation?

You edit the elasticsearch.yml file located in the config folder to change settings like cluster name, network host, and ports.

beginner

How can you verify that Elasticsearch is running correctly after setup?

Open a browser or use a tool like curl to access http://localhost:9200. You should see a JSON response with cluster information.

What port does Elasticsearch use by default?

A 8080

B 5432

C 3306

D 9200

Elasticsearch listens on port 9200 by default for HTTP requests.

Which file contains the main configuration for Elasticsearch?

A elasticsearch.yml

B config.json

C settings.xml

D elasticsearch.conf

The elasticsearch.yml file holds the main configuration settings.

Which command starts Elasticsearch on Linux using systemd?

A systemctl start elasticsearch

B service elasticsearch stop

C start elasticsearch

D elasticsearch run

The systemctl start elasticsearch command starts the service on Linux systems using systemd.

Before installing Elasticsearch, you should verify your system has:

A Node.js installed

B Compatible Java version

C Python installed

D Docker installed

Elasticsearch requires a compatible Java version to run properly.

How do you check if Elasticsearch is running after setup?

A Run 'java -version'

B Open http://localhost:8080

C Access http://localhost:9200 in a browser

D Check the Docker container logs

Accessing http://localhost:9200 returns cluster info if Elasticsearch is running.

Describe the basic steps to install and start Elasticsearch on your computer.

Think about downloading, prerequisites, starting, and checking.

Explain how to configure Elasticsearch after installation.

Focus on the configuration file and restarting.