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ElasticSearch

Overview

Elasticsearch provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents.

https://www.elastic.co/

ElasticSearch

Elasticsearch - Standalone

A standalone version of ElasticSearch. Great for development and getting started.

What it installs.

Installs ElasticSearch Version 2.3.4 on Java 8 (Oracle Version)

Quick Service test

An easy test to check whether ElasticSearch is operating correctly from the command line on host is to execute

curl http://localhost:9200

It should return a JSON response.

Starting and Stopping the Service

To start and stop the service

sudo service elasticsearch start

sudo service elasticsearch start

Config locations and key variables

  • Your ElasticSearch is installed at /opt/elasticssearch
  • Java 8 is set up and the java home is set to /usr/local/java

Security

Elasticsearch exposes ports 9200 and 9300. Due to the un-secured operation of Elasticsearch it is advisable to only have access to the instances from within your cluster.

Alternatively you can add the Shield Plug-In. Shield is a paid plug-in by Elasticsearch for authentication. Please follow instructions here. If you would like support in installing Shield, please drop us a note.

Please read this document from Elastic on things you should know about Securing ElasticSearch : https://www.elastic.co/blog/found-elasticsearch-security

Useful Resources

The following are a couple of links we found useful.

Related Applications

Kibana Logstash - The combination Elasticsearch, Logstash & Kibana is known as the ELK Stack and is most used for aggregating log files and analysing them.