Amazon OpenSearch Service
- DynamoDB only queries by primary key or indexes, while OpenSearch can search any field, even partially matches
- Common to use it as a complement to another DB
- 2 mods: managed cluster or serverless cluster
- Does NOT natively support SQL (can be enabled via a plugin)
- Ingestion from Kinesis Data Firehose, AWS IoT, and CloudWatch Logs
- Security through Cognito & IAM, KMS, TLS
- Comes with OpenSearch Dashboards