For ML, ingest node is required?

hello,
i am researching about ML/anomaly detection feature, and one question came up.

Is ingest node required for ML? as far as i remember, ingest nodes set up is mandatory for node configuration, but not sure if ingest node numbers are seriously affect ML performance. if so, how ingest nodes work during ML operation?

please advise.

thank you!

ingest nodes are only required if you are running ingest pipelines. https://www.elastic.co/guide/en/elasticsearch/reference/6.6/ingest.html

If you are not, you can set node.ingest: false but it won't really change a lot of thing as you are not using the feature.

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