What is Elasticsearch?
Elasticsearch is a distributed document store that stores data in an inverted index. An inverted index lists every unique word that appears in any document and identifies all of the documents each word occurs in. Elasticsearch indexes the document and claims that the document is fully searchable in near real-time (within 1 second).
What is the process of storing data in Elasticsearch?
Every document is analyzed when adding or updating in ES.
What is an analyzer and how does an analyzer work?