AWS Database Blog

Microsoft SQL Server 2017 supports Always On availability groups between Windows and Linux to create read-scale workloads without high availability (HA). Unfortunately, you cannot achieve HA between Windows and Linux because there is no clustered solution that can manage that cross-platform configuration. To use HA with Always On availability groups, consider using a Windows Server […]

Microservices-based applications architectures are the norm for building scalable applications. AWS makes creating these types of applications easier with Amazon DocumentDB (with MongoDB compatibility). Just bring your code and deploy an application with this fast, scalable, highly available, and fully managed document database service that supports MongoDB workloads. You can use the same MongoDB application […]

Do you have transactional applications that have high uptime requirements? Do you want a relational database in the cloud to help you meet those requirements? The newly launched Amazon Aurora Multi-Master, is designed for applications that need a relational database resilient to node failures and highly available for both reads and writes. Amazon Aurora is […]

This post has been reviewed and/or updated on June 2022. Data privacy is essential for organizations in all industries. Encryption services provide one standard method of protecting data from unauthorized access. However, encryption changes data in a way that makes it unreadable without the correct decryption key. Amazon Relational Database Service (Amazon RDS) can encrypt […]

September 2023: This post was reviewed and updated for accuracy. Amazon RDS for PostgreSQL enables you to easily configure replicas of your source PostgreSQL instance to clear your read load and to create disaster recovery (DR) resources. You can configure Read Replicas within the same Region as the source or in a different Region. When […]

Expanding on the earlier post, Create AWS CloudFormation templates for AWS DMS tasks using Microsoft Excel, this post highlights an enhanced feature of the same tool that can speed database migration. To demonstrate this feature, we present a small command line tool written in Python. The tool takes a CSV file containing the names of […]

Amazon DynamoDB provides scalability and performance where response times are measured in single-digit milliseconds. For use cases requiring response times in microseconds, DynamoDB Accelerator (DAX) is the service that helps deliver that. DAX is a managed cache that is API compatible with DynamoDB  providing fast in-memory performance for demanding applications like real-time gaming, bidding, weather […]

In this post, I will describe how you can leverage ElastiCache for Redis with cluster mode enabled to enhance reliability and availability with little change to your existing workload. Cluster Mode comes with the primary benefit of horizontal scaling up and down of your Redis cluster, with almost zero impact on the performance of the cluster, as I will demonstrate later. If you have ever encountered a Redis cluster that is over or under-provisioned or just want to better understand its inner workings, please read on.

Over the years, customers have used Amazon Alexa voice commands to order supplies, listen to music, support meetings, manage home devices, and get weather and news updates. But what about AWS resource management? AWS managed and fully managed services already reduces your administrative tasks, letting you focus your resources on applications. Now, voice interaction can […]

Today AWS DMS announces support for migrating data to Amazon S3 from any AWS-supported source in Apache Parquet data format. This is one of the many new features in DMS 3.1.3. Many of you use the “S3 as a target” support in DMS to build data lakes. Then, you use this data with other AWS […]