# Elasticsearch cluster of 4 nodes has "master not discovered exception"

**URL:** https://discuss.elastic.co/t/elasticsearch-cluster-of-4-nodes-has-master-not-discovered-exception/124984
**Category:** Elasticsearch
**Created:** [March 21, 2018, 12:41pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-of-4-nodes-has-master-not-discovered-exception/124984 "2018-03-21T12:41:52Z")
**Posts on this page:** 1
**Showing post:** 18

<div class="post-metadata">

### Author: ![minidan](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@minidan](https://discuss.elastic.co/u/minidan)
#### Post date: [April 20, 2018, 9:38am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-of-4-nodes-has-master-not-discovered-exception/124984/18 "2018-04-20T09:38:37Z")

</div>

root@SERVER:~# curl -XGET '[http://localhost:9200](http://localhost:9200)'  
{  
"name" : "SERVER",  
"cluster\_name" : "servername",  
"cluster\_uuid" : "QyHQj6TXTzG9ZYjC0B5ZCA",  
"version" : {  
"number" : "6.1.2",  
"build\_hash" : "5b1fea5",  
"build\_date" : "2018-01-10T02:35:59.208Z",  
"build\_snapshot" : false,  
"lucene\_version" : "7.1.0",  
"minimum\_wire\_compatibility\_version" : "5.6.0",  
"minimum\_index\_compatibility\_version" : "5.0.0"  
},  
"tagline" : "You Know, for Search"  
}

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_[View the full topic](https://discuss.elastic.co/t/elasticsearch-cluster-of-4-nodes-has-master-not-discovered-exception/124984)._