Set role for cluster-member node

Elastic Stack Elasticsearch
1

We 've been using ELK v7.10 in a cluster setup with several nodes.
For the time being, all nodes have the same roles.

According to the documentation, we could specify that a given node (member of the cluster) can have the data_cold role.

Is there an API we could invoke in order to set that role once the node becomes part of the cluster?
Is there a specific flag we should have used while adding the node in the cluster?

2

That is set in the Elasticsearch config file.

3

Please note that 7.10 is EOL, you should upgrade as a matter of urgency.

4

Thank you @Christian_Dahlqvist !
So, all it takes is setting node.roles: [ data_cold ] via the relevant elasticsearch.yml config file.

@warkolm useful link! We 'll make sure we frequently track the EOL versions.

5

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