What Is CSS?
Cloud Search Service (CSS) is a fully managed, distributed search engine service. It is fully compatible with open-source Elasticsearch and provides you with structured and unstructured data search, statistics, and report capabilities. CSS works in the similar way as a database.
CSS can be automatically deployed, where you can quickly create clusters. It provides the search engine optimization practices with zero O&M. Additionally, it has a robust monitoring system to present you key metrics, including clusters and query performance so that you can focus on the business logic.
For details about Elasticsearch, see the Elasticsearch Reference.