How to setup an elasticsearch cluster

From my experience, if you just run the executable in two or more machines connected via a network, elasticsearch will somehow figure it out and all nodes will be added to the same cluster. I don't think you have to do anything.

This is the tutorial I've used: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/setup.html

Here you have a step by step guide on how to setup an EMR cluster with Elasticsearch and Kibana installed using the bootstrap actions mentioned before.

http://blogs.aws.amazon.com/bigdata/post/Tx1E8WC98K4TB7T/Getting-Started-with-Elasticsearch-and-Kibana-on-Amazon-EMR

The article also provides basic Elasticsearch tests on the installed cluster.

The bootstrap actions also provide the Elasticsearch-Hadoop plugin that will allow you to run Mapreduce or other Hadoop applications.

Last version of Elasticsearch Bootstrap actions are available here:

https://github.com/awslabs/emr-bootstrap-actions/tree/master/elasticsearch

The only thing to cluster two elasticsearch node is, identical cluster name of elasticsearch nodes.you can find cluster name elasticsearch.yml file.[you can find the file in config folder of elasticsearch ].The default cluster name is elasticsearch.

To change name edit the property in elasticsearch.yml

cluster.name: "custom cluster name"

Elasticsearch uses zen discovery to find the the nodes in cluster during start up.If the cluster name is identical the elasticsearch ll automatically form the cluster.