Some of the advantages of Elasticsearch are:
- Open source (Apache 2 License) with strong community backup
- Distributed by birth
- RESTful (JSON over HTTP) in nature
- Really fast in operation
- Feature-rich search capabilities: capable of supporting a variety of search related use cases
- Faceted (see info) search/analysis capability
- Full-featured and powerful query DSL (Domain Specific Language)
- Can be extended via use of plugins available in industry or by creating new ones
- Very good visualization support (use of Kibana built-in)
- Multiple deployment topology support out of the box
- Multi-tenancy capability
- Cloud-ready
- Developer friendly. Familiar syntax to work with
- Built-in efficient cache mechanism to make queries fast ...