Elasticsearch wears two hats: It is both a powerful search engine built atop Apache Lucene, as well as a serious data warehousing/BI technology.

This course will help you use the power of ES in both contexts

ES as search engine technology:

• How search works, and the role that inverted indices and relevance scoring play
• The tf-idf algorithm and the intuition behind term frequency, inverse document frequency and field length
• Horizontal scaling using sharding and replication
• Powerful querying functionality including a query-DSL
• Using REST APIs - from browser as well as from cURL

ES as data warehouse/OLAP technology:

• Kibana for exploring data and finding insights
• Support for CRUD operations - Create, Retrieve, Update and Delete
• Aggregations - metrics, bucketing and nested aggs
• Python client usage