description Amazon DynamoDB Global Tables Overview
DynamoDB Global Tables provide a fully managed, multi-region, multi-active database. Data is automatically replicated across regions with very low latency. This allows applications to serve traffic from any region and provides an inherent disaster recovery mechanism; if one region fails, the application can immediately route requests to another region where the data is already present.
help Amazon DynamoDB Global Tables FAQ
What problem do DynamoDB Global Tables solve?
DynamoDB Global Tables replicate a table across multiple AWS Regions. That lets an application serve reads and writes closer to users and continue operating if one Region has a serious problem.
Are DynamoDB Global Tables active-active?
Yes, Global Tables are designed for multi-Region active-active use. Applications can write to regional replicas, and DynamoDB replicates changes to the other selected Regions.
How are write conflicts handled in DynamoDB Global Tables?
DynamoDB Global Tables use a last-writer-wins style conflict resolution model. That means applications with frequent concurrent writes to the same item need careful data modeling.
How are Global Tables different from AWS Elastic Disaster Recovery?
Global Tables protect and replicate DynamoDB data across Regions. AWS Elastic Disaster Recovery is a server and workload recovery service, so it solves a different disaster recovery problem.
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