Elasticsearch Connector
Elasticsearch Connector is a set of modules designed to build a full Elasticsearch eco system in Drupal. It is using the official Elasticsearch PHP library. You can also view the github repo.
Drupal Elasticsearch Connector Showcase - Multi purposes hub
Connecting Logstash to Elasticsearch - Instaclustr
Indexing content from Drupal 8 using Elasticsearch
Elasticsearch + Hadoop: Best of Two Worlds for Real-Time Data
Augmented Search overview and architecture
Introducing our High-Performance Elasticsearch Connector for
Kafka Connect Elasticsearch Sink Connector
Use the Elasticsearch Connector
New interface for REST API integration, Elastic search connector