This topic needs further documentation to make it stellar. If you have experience with this transformation step, we encourage you to update this topic. More information can be found in JIRA case DOC-924.
The ElasticSearch Bulk Insert step streams data within a transformation to the database.
As of Pentaho 5.4, the step is designed to work with Elastic Search 0.16.3 (download link).
Add your elasticsearch transport server address here. Most often, this is 127.0.0.1:9300 (don't confuse with HTTP port 9200!)