Elasticsearch Spark plugin


I want to use Spark SQL to query data in Elasticsearch but, from what I read, it's necessary to build a complete Hadoop structure to be able to connect Elasticsearch to Spark using the elasticsearch-hadoop connector. Is this true?

Is it possible to connect a standalone Spark instance to Elasticsearch?

Or, from a different point of view, is it possible to use Elasticsearch API to connect to a Spark instance?

Thank you,

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