# Multi Master configuration
**URL:** https://discuss.elastic.co/t/multi-master-configuration/188612
**Category:** Elasticsearch
**Created:** [July 3, 2019, 5:49am UTC](https://discuss.elastic.co/t/multi-master-configuration/188612 "2019-07-03T05:49:25Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@stalinbritto](https://discuss.elastic.co/u/stalinbritto)
#### Post date: [July 3, 2019, 5:49am UTC](https://discuss.elastic.co/t/multi-master-configuration/188612/1 "2019-07-03T05:49:25Z")
Hi Team,
I'm currently trying to configure an elastic search cluster with 2 masters and 3 data nodes
My cluster is working 1 Master and 3 data Node.
root@ELK-Master1:~# curl [http://IP:9200/\_cat/nodes?v](http://IP:9200/_cat/nodes?v)
ip heap.percent ram.percent cpu load\_1m load\_5m load\_15m node.role master name
host1 24 8 0 0.00 0.00 0.00 di - ELK-Slave1
host2 14 8 0 0.00 0.00 0.00 di - ELK-Slave3
host3 29 8 0 0.03 0.01 0.00 di - ELK-Slave2
Master1 14 13 47 3.77 3.68 2.61 mdi \* ELK-Master1
But the second Master couldn't add into Master 1.
**Master1 elasticsearch.yaml:**
cluster.name: PreProd-Cluster
node.name: ELK-Master1
node.master: true
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: Master1
http.port: 9200
discovery.seed\_hosts: ["Master1, Master2"]
cluster.initial\_master\_nodes: ["Master1, Master2"]
**Master2 elasticsearch.yaml:**
cluster.name: PreProd-Cluster
node.name: ELK-Master1
node.master: true
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: Master1
http.port: 9200
discovery.zen.minimum\_master\_nodes: 2
discovery.seed\_hosts: ["Master1, Master2"]
cluster.initial\_master\_nodes: ["Master1, Master2"]
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [July 3, 2019, 6:06am UTC](https://discuss.elastic.co/t/multi-master-configuration/188612/2 "2019-07-03T06:06:27Z")
Elasticsearch is operates in a clustered mode and is not a master-slave system as indicated by your node names. As it relies on consensus algorithms, you should always aim to have at least 3 master-eligible nodes in your cluster. Having 2 master eligible nodes in a cluster is a bad idea as the cluster will be in a red state if any of them go down as there is no majority available to elect a new master.
As you are on the latest version I believe you simply leave the current single master node in the config and then add the new master eligible node(s).
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 31, 2019, 6:18am UTC](https://discuss.elastic.co/t/multi-master-configuration/188612/3 "2019-07-31T06:18:35Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.