Elasticsearch Architecture nodes

Elastic Stack Elasticsearch
1

Hello,

I have an ECK with 1 kibana + 4 nodes Elasticsearch + 1 Logstash.
I am using hot warm cold rotation.

I would like to change my design.
I would like to change for 1 kibana + 3 nodes HOT + 3 nodes WARM + 3 nodes COLD + 1 Logstash
But normally, I need a master too. 1 Master is enough ?
Do you think it's good as design ?

Thanks,

2

Hi Chloe,

it is good practice to limit the number of master-eligible nodes in the cluster to three

I'll send you a link to the documentation that might clarify the whole situation.

https://www.elastic.co/guide/en/elasticsearch/reference/current/high-availability-cluster-small-clusters.html#high-availability-cluster-design-two-nodes-plus

https://www.elastic.co/guide/en/elasticsearch/reference/current/high-availability-cluster-small-clusters.html#high-availability-cluster-design-three-nodes

3

It is not enough, you need at least 3 master to have a resilient cluster.

4

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