Elasticsearch and CloudSearch are Amazon’s cloud search solutions. Elasticsearch is an open-source solution, while CloudSearch is a fully managed search service. This is a fairly simple, simple, and inexpensive search solution. Amazon CloudSearch is an AWS Cloud-powered service that allows users to create search solutions that are fast, scalable, profitable, and easily adapted for their applications. Amazon CloudSearch uses Apache Solr as the main text search engine that supports full-text search, faceted search, real-time indexing, dynamic grouping, database integration, NoSQL functions, and productive document processing in architecture.