Amazon ElastiCache for Valkey and for Redis OSS

Amazon ElastiCache works as an in-memory data store to support the most demanding applications requiring sub-millisecond response times. In comparison to disk-based databases where most operations need a round trip to disk, in-memory data stores manage data in-memory which is an order of magnitude faster than disks. The result is performance with average read or write operations taking less than a few microseconds and support for hundreds of millions of operations per second within a cluster. ElastiCache gives you an optimized end-to-end hardware and software stack for fast performance. You can achieve over 1 million requests per second per node, or 500 million request per second per cluster, on r7g.4xlarge nodes or larger.

ElastiCache provides you with the ability to create and manage users and user groups that can be used to set up Role-Based Access Control (RBAC) for Valkey and Redis OSS commands. You can simplify your architecture while maintaining security boundaries, and also take advantage of granular access control to manage groups. You can use AWS Identity and Access Management (IAM) to connect to ElastiCache using IAM identities. ElastiCache supports Amazon VPC, so you can isolate your cluster to the IP ranges you choose for your nodes. The ElastiCache team continuously monitors for known security vulnerabilities in Valkey and Redis OSS, operating system, and firmware to keep your environment secure. It is PCI compliant, HIPAA eligible, FedRAMP authorized, and offers encryption in transit, at rest (including customer managed CMK stored in AWS KMS), and Valkey and Redis OSS AUTH for secure internode communications to help keep sensitive data such as personally identifiable information (PII) safe.

Learn more about Role-based AccessControl (RBAC)
Learn more about ElastiCache IAM Authentication
Learn more about VPC for ElastiCache

Valkey and Redis OSS are in-memory data stores for use as a database, cache, message broker, queue, session store, and leaderboard. Amazon ElastiCache maintains compatibility with Valkey and Redis OSS data formats, APIs, and clients. You can migrate your self-managed Valkey or Redis OSS workloads to ElastiCache without any code change. 

Amazon ElastiCache is a fully managed service. You no longer need to perform management tasks such as hardware provisioning, software patching, setup, configuration, monitoring, failure recovery, and backups. ElastiCache continuously monitors your clusters to keep your them up and running so that you can focus on higher value application development. It provides detailed monitoring metrics of your usage, enabling you to track application trends and adjust cluster configuration as needed. ElastiCache adds automatic write throttling, intelligent swap memory management, and failover enhancements to improve upon the availability and manageability of Valkey and Redis OSS. 

Amazon ElastiCache supports both cluster and non-cluster modes and provides high availability via support for automatic failover by detecting primary node failures and promoting a replica to be primary with minimal impact. It allows for read availability for your application by supporting read replicas (across availability zones), to enable the reads to be served when the primary is busy with the increased workload. ElastiCache supports enhanced failover logic to allow for automatic failover in cases when majority of the primary nodes for cluster mode are unavailable. On ElastiCache for Valkey or ElastiCache versions 5.0.5 onwards for Redis OSS, auto-failover enabled clusters provide online configuration changes for all planned operations. Learn more about automatic failover for ElastiCache.