Installing Elasticsearch on CentOS 7

Elasticsearch is a highly scalable open-source search and analytics engine built on top of Apache Lucene. It is designed to store, search, and analyze large volumes of data quickly and in real-time.

Here's how you can install Elasticsearch on CentOS 7:

sudo yum update

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

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

Add the following lines to the repository file:

[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

sudo yum install elasticsearch

sudo vi /etc/elasticsearch/elasticsearch.yml

Uncomment the following lines:

network.host: localhost cluster.name: mycluster1

sudo systemctl start elasticsearch

sudo systemctl enable elasticsearch

curl -X GET "localhost:9200"

You should see a JSON response containing information about the Elasticsearch cluster.

1. Update your system packages:
2. Add the Elasticsearch repository to Yum:
3. Install Elasticsearch:
4. Configure Elasticsearch:
5. Start and enable Elasticsearch service:
6. Verify the installation:

Congratulations! You have successfully installed Elasticsearch on CentOS 7. You can now start leveraging its powerful search and indexing capabilities for your applications.