Posted On: Apr 1, 2022

Amazon ElastiCache for Redis now supports Global Datastore in the Asia Pacific (Osaka) and Europe (Stockholm) Regions. Global Datastore is a feature of ElastiCache for Redis that provides fully managed, fast, reliable, and secure cross-Region replication. Using Global Datastore, you can write to your ElastiCache for Redis cluster in one Region and have the data available for read in two other cross-Region replica clusters, thereby enabling low-latency reads and disaster recovery across Regions.

Customers use Global Datastore for real-time applications with a global footprint, as it provides cross-Region replication with latency of typically under one second, increasing application responsiveness by providing geo-local reads closer to end users. In the unlikely event of regional degradation, one of the healthy cross-Region replica clusters can be promoted to become the primary cluster with full read and write capabilities. Once initiated, the promotion typically completes in less than a minute, allowing applications to remain available. To secure cross-Region data transfer traffic, Global Datastore uses encryption in transit.  

To get started, you can set up a Global Datastore with an existing cluster, or create new clusters and designate a primary (active) cluster. Creating a Global Datastore takes only a few clicks in the AWS Management Console for ElastiCache or can be automated by downloading the latest AWS SDK or AWS CLI. To learn more, see the ElastiCache Global Datastore documentation.  

Global Datastore is supported starting with ElastiCache for Redis engine version 5.0.6 or later and R5, R6g, R6gd, M5, and M6g node types. Starting today, Global Datastore is now available in the following 21 Regions: Asia Pacific (Seoul, Tokyo, Singapore, Sydney, Mumbai, and Osaka), Europe (Frankfurt, Paris, London, Ireland, and Stockholm), US East (N. Virginia and Ohio), US West (N. California and Oregon), South America (São Paulo), AWS GovCloud US Regions (US-East, US-West), Canada (Central) Region, China (Beijing and Ningxia). Costs are calculated based on ElastiCache node-based pricing for all nodes created as part of Global Datastore, and standard AWS data transfer out rates apply from the primary Region. Global Datastore is not eligible for the AWS Free Tier. See the ElastiCache pricing page for more details.