When a problem occurs with the primary model, one of these read-only instances will be the primary instance (failover). With single-master replication, users can create 15 read-only replicas after completing the primary instance. Also, SSDs offer built-in high availability and data durability.Īmazon Aurora supports available zones. If one copy is down, others will support to continue the operations. Amazon has positioned these physical nodes in several zones for each geographical region (aka availability zones) to maintain high durability and availability even in a major disaster such as a fire or significant power outage. Other Features Comparison Durability and AvailabilityĮvery single piece of data in DynamoDB is replicated to the multiple physical nodes. And, you can use the VPC security group to control which devices and Amazon EC2 instances can connect to the database instance. But Aurora DB clusters must be created in a VPC clearly defining its network boundary. However, Aurora also provides MySQL and PostgreSQL-compatible connection interfaces to connect to the database.īesides, DynamoDB is a regional service that stays outside the VPC boundary. A similar permission scheme also exists for Amazon Aurora. Learn more about DynamoDB Security here Access ControlĭynamoDB has IAM users and roles support with fine-grained policies to limit the database creation and query permissions. Customer managed or customer master keys will be known as the CMK feature in AWS KMS. KMS Customer Management Keys (CMK) gives users complete control over KMS keys and charges a price (Customer-managed key).Īmazon Aurora has AWS-managed keys and customer-managed keys.
KMS will secure the keys stored in your account, and a fee will apply (AWS-managed key).The key of DynamoDB is encrypted by default, and it is at zero cost (AWS-owned key).On the other hand, Amazon DynamoDB users have three options to encrypt the table with the use of AWS KMS. We can use AWS KMS to create, store, and manage their encryption keys. Security Encryption at Restīoth DynamoDB and Aurora support encryption at rest using encryption keys stored in AWS KMS (Key Management Service). As a result, it improves throughput and makes it a high-performing cloud-native relational database in AWS. This design takes the majority of storage processing to the background. One of the basic design principles for this storage service is to minimize the latency in writing in the foreground. According to AWS, the Storage service design for Aurora makes this possible. It has a five-time throughput rate as standard MySQL output and a three-time throughput rate as standard PostgreSQL output. AuroraĪmazon Aurora is a MySQL and PostgreSQL-compatible relational database solution. I hope you can simply imagine how scalable it is by looking at these numbers. In addition, maintaining a better table layout, using the keys and indexes effectively for queries, and streamlining the database workload, optimizes DynamoDB’s performance.ĭynamoDB handles up to 10 trillion requests per day and more than 20 million requests per second. Regardless of the size of your table, it maintains low latency (millisecond latency) behind this practice. This server instance supports the computational resources needed for database operations. In addition, the high IO performance of SSDs provides less latency and response time for storing and reading data at any scale. DynamoDBĭynamoDB can create database tables that can store data and serve any level of on-demand traffic. Latency and Performanceįirst, let’s compare the database access latency and query performance in detail. However, Aurora cluster volume can also grow up to 128 Terabytes, but it may take up to 15 minutes when changing its size. Both the databases fulfill high scalability requirements, and the capacity can automatically grow as needed.Īnd, the most significant difference among them is that DynamoDB is a NoSQL database while Aurora is a relational database.īesides, if we consider massive amounts of data, DynamoDB is the winner, supporting petabytes of data and seamlessly scales up or down.
#AURORA BACKTRACK FULL#
Shared Attributes for DynamoDB and Auroraįor fully-managed databases, choosing DynamoDB or Aurora, you can focus your full attention on using the database rather than doing database administration. This article shows a comparison between two popular database services, DynamoDB and Aurora, both Serverless and fully managed by AWS. Some of them are Relational, and others are NoSQL. AWS provides a wide range of cloud-based database systems for developers.
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