Elasticsearch connection

You can create a connection asset for Elasticsearch in a project or in a catalog. If you have a Watson Machine Learning service instance, you can promote the connection asset from a project to a deployment space. 

Elasticsearch is a distributed, open source search and analytics engine. Use the Elasticsearch connection to access JSON documents in Elasticsearch indexes.

Supported tools

These tools support Elasticsearch connections:

  • Data Refinery
  • SPSS Modeler


  • For Elasticsearch versions earlier than version 7, read is limited to 10,000 rows.
  • For Data Refinery, the only supported action on the target file is to append all the rows of the Data Refinery flow output to the existing data set.

Supported versions

Elasticsearch version 6.0 or later

Elasticsearch setup

Set up Elasticsearch

Supported encryption

(Optional) SSL certificate


Username and password
(Optional) Anonymous access

Watson Studio and Watson Knowledge Catalog plans

The Elasticsearch connection is available on all Watson Studio and Watson Knowledge Catalog plans.

Learn more