Skip to main content
Sponsor @cloudposse

Decide on the backup AWS region for Aurora Global Cluster

Considerations​

  • Global Aurora Postgres cluster requires at least two regions in which aws_rds_cluster are created

  • An Aurora global database consists of one primary AWS Region where your data is mastered, and up to five read-only, secondary AWS Regions. Aurora replicates data to the secondary AWS Regions with a typical latency of under a second. You issue write operations directly to the primary DB instance in the primary AWS Region

  • Related to this: decide on VPC CIDRs for the main and backup regions

info

Consequences of deploying RDS Aurora Global Cluster include:

  • Provisioning additional VPC and Aurora clusters in the backup region

  • Setting up peering via the transit gateway because write operations go directly to the primary DB instance in the primary AWS Region