Skip to main content - DynamoDB is fast and flexible NoSQL DB. It can be used for all application that needs consistent, single-digit millisecond latency at any scale. It is fully managed database. And supports both document and key-value data model.
- Stored in SSD storage.
- Spread across three geographically distinct data centers.
- Eventual Consistent Read (Default).
- Consistency across all copies of the data is usually reached within 1 second. Repeating a read after a short time should return an updated data.
- Strongly consistent Read.
- Returns a result that reflects all writes that received successful response prior the read.
- DynamoDB pricing
- Provisioned Throughput capacity.
- Write Throughput $0.0065 per hour for every 10 units.
- Read Throughput $0.0065 per hour for every 50 units.
- Storage cost of $0.25GB per month.
- AWS database types
- Elastic Cache – In Memory Cache
- Encryption of the Database
- Encryption at REST is supported for MySQL, Oracle, SQL, PostgreSQL, MariaDB and Aurora.
- Encryption is done by AWS KMS service (Key Management Service).
- Once the RDS instance is encrypted. The data stored at REST in the underlying storage is encrypted.
- This is applicable for Automated, Read Replicas and Snapshots.
- At present, Encryption of the existing database is not supported. To use Amazon RDS encryption for the existing database, you must first create a snapshot, make a copy of that snapshot and encrypt the copy.