Nodes for Elasticsearch

Elastic Stack Elasticsearch
1

Hi,

I would like to know if 3-node cluster is the desired setup for Elasticsearch? I have this type of setup since I'm configuring X-Pack for this cluster.

Cluster: TestES

node.name: ENode1
node.master: true
node.data: false
node.ingest: false

node.name: ENode2
node.master: true
node.data: true
node.ingest: false

node.name: ENode3
node.master: false
node.data: true
node.ingest: true

But If have a 2-node cluster there should be two masters and 2 data nodes? or is it possible to have this type of setup..

Cluster: TestES

node.name: ENode1
node.master: master
node.data: true
node.ingest: false

node.name: ENode2
node.master: true
node.data: true
node.ingest: true

Will this affect the performance of Elasticsearch if cluster is only 2-node?

Thanks!

2

Set all 3 nodes master:true and don't use only 2 nodes to avoid cluster stopping or split brain issues.

3

Hi David,

Thanks for the advise :slight_smile:

4

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