Install ElasticSearch on CentOS/RHEL

ElasticSearch is adaptable and capable open source, dispersed ongoing pursuit and explanatory motor. Utilizing a basic arrangement of APIs, it gives the capacity to full-content hunt. A versatile inquiry is uninhibitedly accessible under the Apache 2 permit, which gives most adaptability.


Features include:

  • Circulated and Highly Available Search Engine.
  • Multi Tenant with Multi Types.
  • Various set of APIs
  • Document-oriented
  • Reliable, Asynchronous Write-Behind for long term persistence.
  • Real-Time Search.
  • Built on top of Lucene
  • Per operation consistency

Step 1: Verify Java

Java is an essential necessity for introducing ElasticSearch. To verify you have Java introduced on your framework.

# java -version 
java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)
If you don’t have Java installed on your system, use one of following link to install it first.

Install JAVA 7 on CentOS/RHEL
Install Java 8 on CentOS/RHEL 6/5

Step 2: Downloading ElasticSearch Archive
Presently download the most recent ElasticSearch document from its authority download page.

# wget

Step 3: Extract ElasticSearch
Now extract ElasticSearch on your server.

# tar xzf elasticsearch-1.5.1.tar.gz

Step 4: Configure ElasticSearch
Presently we have to setup ElasticSearch bunch name. ElasticSearch utilizes “elasticsearch” as default bunch name, We prescribe to change it according to your need.

# mv elasticsearch-1.5.1 /usr/local/elasticsearch
# cd /usr/local/elasticsearch

Step 5: Changes in the Configuration file
To change cluster named alter config/elasticsearch.yml record and upgrade the following values.

# vim config/elasticsearch.yml Technical_Group "Technical Help"


Step 6: Install ElasticSearch-Head Plugin
elasticsearch-head is a web front end for scanning and cooperating with an Elastic Search cluster. Use the following command to install it.

# bin/plugin --install mobz/elasticsearch-head

Step 7: Starting ElasticSearch Cluster
As the ElasticSearch setup is finished. Let the begin ElasticSearch using following command.

# ./bin/elasticsearch &

Step 8: Verify Setup
You have all done, simply need to check setup. ElasticSearch deals with port default port 9200.



Basic Examples of ElasticSearch Uses

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