I used ES a long time ago and rivers have since been deprecated: https://www.elastic.co/blog/deprecating-rivers https://www.elastic.co/blog/deprecating-rivers

I used ES a long time ago and rivers have since been deprecated: https://www.elastic.co/blog/deprecating-rivers https://www.elastic.co/blog/deprecating-rivers A river was just a mapping from a database to ES. For example, you could search CouchDB with ES with the proper river set up.