Hi All, I will explain you how to install Elasticsearch (v 1.7.4) on CentOS7 Operating system.

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Before, we need to install JVM because Eleasticsearch run on JAVA.

yum install -y java-1.8.0-openjdk.x86_64

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After installation of JAVA, go to https://www.elastic.co and download ES 1.7.4 package.

wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.7.4.noarch.rpm

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After this step,  continue Elasticsearch installation with rpm -i

rpm -i elasticsearch-1.7.4.noarch.prm

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After installation, we need to run the commands which are needed to run at OS level respectively. At this point, we should pay attention to declare on which NIC, Elasticsearch will work.

Example: In /etc/elasticsearch/elasticsearch.yml configuration file http.bind.host can be edited as “1.1.1.1”.

After declaring the NIC that Elasticsearch will work on it, now we can start the service.

systemctl start elasticsearch

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After starting the server, if you do not change Elasticsearch (ES) configuration, it will write its logs under /var/log/elasticsearch folder.

Before send a request to ES, do a final check to the ports that ES run.

netstat -tulpn

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After verify the NIC declarations that we did in /etc/elasticsearch/elasticsearch.yml, we can send requests to the ES server.

curl -XGET 192.168.24.102:9200

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After installation, in order to increase cluster node number by adding a new node to the system, open /etc/elasticsearch/elasticsearch.yml
and write discovery.zen.ping.unicast.hosts: “current ES server IP address”.

The plugins that I want to suggest