Create ElasticSearch cluster on single machine

I wanted to figure out how to create a multi-node ElasticSearch cluster on single machine. So i followed these instructions

1. First i did download elasticsearch zip file.
2. Create 3 folders in  like node1, node2 and node3
3. Unzip elasticsearch.zip in each one of these folders and name the folder node1,node2,node3
4. Then i opened the node1/config/elasticsearch.yml and i did change value of cluster.name to samarcluster and value of node.name to node1,node2 and node 3  as shown below.

Typical setup done with 3 nodes on a single machine

node1: 

cluster.name: samarcluster

node.name: "node1"

node.master: true

node.data: true

node2 : 

cluster.name: samarcluster

node.name: "node2"

node.master: false

node.data: true

node3 : 

cluster.name: samarcluster

node.name: "node3"

node.master: false

node.data: false

Next step was to install below Plugins

Marvel on each of the nodes by executing bin/plugin -i elasticsearch/marvel/latest

ElasticSearch-HQ on each of the nodes by executing bin/plugin -install royrusso/elasticsearch-HQ

Once all the 3 nodes are started, i could see them in marvel and elasticHQ as shown below.

Elastic Search MongoDB Integration

Follow below steps to install elastic search, assuming mongoldb is already installed.

1)curl -O https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.7.2.zip

2) export ES_HOME=/Users/samaraarkotti/Documents/elasticsearch-1.7.2  

3) $ES_HOME/bin/plugin -install elasticsearch/elasticsearch-mapper-attachments/2.7.1   (  https://github.com/elastic/elasticsearch-mapper-attachments )

4) $ES_HOME/bin/plugin -install com.github.richardwilly98.elasticsearch/elasticsearch-river-mongodb/2.0.9 ( https://github.com/richardwilly98/elasticsearch-river-mongodb/ )

5) $ES_HOME/bin/plugin --install mobz/elasticsearch-head

6) $ES_HOME/bin/plugin -i elasticsearch/marvel/latest

7) start elastic search bin/elasticsearch

Optional Plugin to install 

$ES_HOME/bin/plugin --install lukas-vlcek/bigdesk ( To access Inquisitor, open http://localhost:9200/_plugin/bigdesk)

$ES_HOME/bin/plugin -install polyfractal/elasticsearch-inquisitor   ( To access Inquisitor, open http://localhost:9200/_plugin/inquisitor/ ) 

curl -XPUT 'http://localhost:9200/_river/mongodb/_meta' -d '{"type": "mongodb","mongodb": {"db": "analytics","collection": "Article"},"index": {"name": "articleindex","type": "article"}}'

curl -XPUT 'http://localhost:9200/_river/mongodb/_meta' -d '{"type": "mongodb","mongodb": {"db": "analytics","collection": "ViewsAndRatingDetails"},"index": {"name": "viewindex","type": "views"}}'

-- DELETE Plugins using curl or directly on web both articleindex and _river , once done , run above curl command to index again .

curl -XDELETE 'http://localhost:9200/_river/mongodb'

curl -XDELETE 'http://localhost:9200/articleindex'

Reference 

http://localhost:9200/_plugin/river-mongodb/

http://localhost:9200/_plugin/head/

http://localhost:9200/_plugin/marvel/sense/index.html

http://localhost:9200/_plugin/calaca/

https://www.elastic.co/guide/en/elasticsearch/reference/1.4/modules-plugins.html

--- if getting any error's converting your standalone mongodb to replicaset , follow below steps

1)start the server in your usual way (single instance)

2)connect to the instance with a similar command : ./mongo --port 27017

3)look at your databases : show dbs

4)if there is a db called local, connect to it:  use local

drop that database : db.dropDatabase()

--- if you are getting error saying _mongodb RIVER FAILED to start ,

1) Then delete the _river plugin ( curl -XDELETE 'http://localhost:9200/_river/mongodb' )

2) shutdown ES and restart

-- disable dynamic mapping  -- NOT WORKING

curl -XDELETE localhost:9200/articleindex    --- First delete the index

curl -XPUT localhost:9200/articleindex -d '{"index.mapper.dynamic": false}'

--added below in elasticsearch.yml under config folder 

you will also need to configure elastic search to accept requests from the browser using CORS ( cross origin site scripting). To enable CORS, add the following to elasticsearch's config file. Usually, this file is located near the elasticsearch  at config/elasticsearch.yml

http.cors:

  enabled: true

  allow-origin: /https?:\/\/localhost(:[0-9]+)?/