# Setting up elastic search master and data node configuration in two different servers
**URL:** https://discuss.elastic.co/t/setting-up-elastic-search-master-and-data-node-configuration-in-two-different-servers/98012
**Category:** Elasticsearch
**Created:** [August 23, 2017, 7:07am UTC](https://discuss.elastic.co/t/setting-up-elastic-search-master-and-data-node-configuration-in-two-different-servers/98012 "2017-08-23T07:07:43Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@virat](https://discuss.elastic.co/u/virat)
#### Post date: [August 23, 2017, 7:07am UTC](https://discuss.elastic.co/t/setting-up-elastic-search-master-and-data-node-configuration-in-two-different-servers/98012/1 "2017-08-23T07:07:43Z")
I have two elasticsearch running on two different servers, I have same indexes on both servers. I want to have a master and data node configuration, for that below are the configuration changes which I did so far:
Master Node -\> xx.xx.xx.xx:9200
cluster-name : ABC
Node-name : XYZ
node.master: true
node.data: false
node.ingest: false
http.port: 9200
discovery.zen.ping.unicast.hosts: ["127.0.0.1","zz.zz.zz.zz:9200"]
Data Node: -\> zz.zz.zz.zz:9200
cluster-name : ABC
[node.name](http://node.name): PQR
node.master: false
node.data: true
node.ingest: false
http.port: 9200
discovery.zen.ping.unicast.hosts: ["127.0.0.1","xx.xx.xx.xx:9200"]
The problems are -
1. When I search some indexes from master I get the result but when I hit second server(having only data node), I get master\_not\_discovered\_exception. reason ?
2. How to check if master and data node configuration is working properly?
I am a newbie here 🙂
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### Author:  [@virat](https://discuss.elastic.co/u/virat)
#### Post date: [August 23, 2017, 5:33pm UTC](https://discuss.elastic.co/t/setting-up-elastic-search-master-and-data-node-configuration-in-two-different-servers/98012/2 "2017-08-23T17:33:20Z")
I have got the solution. As I installed through rpm packages in the logs I was getting below issue:
[2017-08-24T03:50:01,331][INFO][o.e.d.z.ZenDiscovery] [node-2] failed to send join request to master [{node-1}{sYqhGZc4QyK\_cbZ9\_cz8gQ}{BBHUedE6Roaw0AMiYnQwIg}{172.31.4.119}{172.31.4.119:9300}], reason [RemoteTransportException[[node-1][172.31.4.119:9300][internal:discovery/zen/join]]; nested: IllegalArgumentException[can't add node {node-2}{sYqhGZc4QyK\_cbZ9\_cz8gQ}{FbDpyWy2S7SS1c8TvLsnfQ}{172.31.4.118}{172.31.4.118:9300}, found existing node {node-1}{sYqhGZc4QyK\_cbZ9\_cz8gQ}{BBHUedE6Roaw0AMiYnQwIg}{172.31.4.119}{172.31.4.119:9300} with the same id but is a different node instance]; ]
I had deleted contents of data folder(/var/lib/elasticsearch/nodes/0) and restarted both the servers and it worked for me.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 20, 2017, 5:33pm UTC](https://discuss.elastic.co/t/setting-up-elastic-search-master-and-data-node-configuration-in-two-different-servers/98012/3 "2017-09-20T17:33:21Z")
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