Install and Configure Elasticsearch on RHEL 6.6

Download the Elasticsearch RPM package (version 2.1.2) from the Elasticsearch website and install it:

wget https://download.elasticsearch.org/elasticsearch/release/org/elasticsearch/distribution/rpm/elasticsearch/2.1.2/elasticsearch-2.1.2.rpm

rpm -ivh elasticsearch-2.1.2.rpm

Install the Elasticsearch search server, preferably using Homebrew:

brew install elasticsearch21

Modify the elasticsearch.yml file in /etc/elasticsearch to start Elasticsearch on the elasticsearch_cedar cluster:

cluster.name: elasticsearch_cedar

Add or change the below line to enable script execution:

script.engine.groovy.inline.search: on

Start Elasticsearch:

elasticsearch