Elasticsearch is the distributed, RESTful search and analytics engine at the heart of the [Elastic Stack](https://www.elastic.co/products). You can use Elasticsearch to store, search, and manage data for logs, metrics, search backend, application monitoring, Endpoint security.
To learn more about Elasticsearch’s features and capabilities, see the [product page](https://www.elastic.co/products/elasticsearch).
**分发版本:** 8.11.1~ynh3
**演示:** <https://www.elastic.co/demos>
## :red_circle: 负面特征
- **Not totally free upstream**: The packaged app is under an overall free license, but with clauses that may restrict its use.