How to config hot-warm arch in elasticsearch 7.9.1

Elastic Stack Elasticsearch
1

Configurations of hot-warm arch in elasticsearch is only changing elasticsearch.yml?

2

Yes that is correct.

3

Thank You! :grinning: :grinning:

4

If I config a node as a hot node or warm node, does it affect shards in each node?
and node.data = true for the hot, warm node of the only hot node or only warm node?

5

If impacts shards if you assign allocation filtering to the indices, yes.

Yes, the nodes needs to be data nodes.

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