Amazon ElastiCache

Additional features

Serverless Deployment Option

Offers a "serverless" mode for ElastiCache, which provides zero infrastructure management, zero downtime for maintenance, and instant, automatic scaling to match application demand.

Fully Managed Service

Handles all administrative tasks of caching, including hardware provisioning, software patching, monitoring, backup, and recovery, removing operational burden from the user.

Microsecond Latency

Designed to deliver extremely fast data access, speeding up databases, data lakes, analytics, generative AI applications, and overall application performance, scaling to hundreds of millions of operations per second.

Valkey-, Memcached-, and Redis OSS-Compatibility

Supports popular open-source caching engines and APIs (Valkey, Memcached, and Redis OSS), allowing for easy migration of existing applications with minimal to no code changes.

ElastiCache Global Datastore

Provides fully managed, cross-Region replication for multi-Region applications, enabling local reads and bolstering disaster recovery capabilities across AWS Regions.

Enterprise-Level Security

Ensures comprehensive security with features like encryption at-rest and in-transit (TLS), fine-grained access controls using AWS Identity and Access Management (IAM), and network isolation via Amazon VPC and private endpoints.

High Availability (Multi-AZ Deployments)

Achieves up to 99.99% availability with multi-Availability Zone deployments, automatically detecting failures and failover to replicas to ensure continuous operation.

Cross-Region Disaster Recovery

Bolsters business continuity through Global Datastore, allowing data to be written in one region and read from replica clusters in two other cross-regions, with promotion capabilities in case of regional degradation.

Backup and Restore

Protects data by creating snapshots of clusters (automatic or manual), which can be used to seed new clusters or exported to Amazon S3 for disaster recovery or analysis.

Automatic and On-Demand Scaling

Serverless Auto-Scaling

Automatically adjusts memory, compute, and network resources both vertically (scaling up in place) and horizontally (scaling out in parallel) to meet dynamic application demands for Valkey and Redis OSS.

Self-Designed Cluster Auto-Scaling

For non-serverless clusters, allows automatic increase or decrease of shards (for clustered Redis) or replicas (for non-clustered Redis/Memcached) based on CloudWatch metrics to maintain performance and optimize cost.

Manual Scaling

Provides options for manually scaling up (changing node type) or scaling out (adding/removing nodes/shards) for self-designed clusters.

Replication Groups (Redis/Valkey)

Supports high availability for Redis/Valkey clusters by creating replication groups with primary and read replica nodes, with automatic failover to a replica in case of primary node failure.

Engine Parameter Configuration

Allows fine-grained control over cache engine settings and operational details through customizable ElastiCache parameter groups.

Detailed Monitoring and Metrics

Provides comprehensive monitoring using Amazon CloudWatch, offering host-level metrics, engine-specific metrics (for Valkey/Redis OSS and Memcached), and events for tracking cluster health and performance.

Logging and Auditing

Integrates with AWS CloudTrail to log Amazon ElastiCache API calls for auditing purposes, and supports log delivery to various destinations.

Amazon SNS Event Notifications

Enables setting up notifications via Amazon SNS for important ElastiCache events, such as node failures or recoveries.

Role-Based Access Control (RBAC)

Supports fine-grained access control with Redis/Valkey's native Role-Based Access Control, allowing control over user permissions.

IAM Authentication

Allows authentication to ElastiCache using AWS IAM identities for enhanced security.

Redis AUTH

Supports Redis's built-in AUTH command for password-based authentication.

Data Tiering (Redis/Valkey)

For ElastiCache for Redis and Valkey, this feature moves less frequently used data to lower-cost SSDs, optimizing costs while increasing storage capacity for larger datasets.

Flexible Node Placement

For self-designed clusters, nodes can be deployed in a single Availability Zone for lower latency or distributed across multiple AZs for higher availability.

Cluster Mode Options (Redis/Valkey)

Supports both Cluster Mode Enabled (partitioning data across multiple shards) for larger, distributed caches and Cluster Mode Disabled (single shard with optional replicas) for simpler setups.

Online Cluster Resizing

Allows resizing of clusters by changing node types while the cluster remains online and continues to serve requests.

Minimizing Downtime during Maintenance

Designed to minimize downtime during routine maintenance activities, including patches and upgrades.

Engine Upgrades

Supports self-service engine upgrades, allowing users to apply service updates at a chosen time and track progress.

Caching Strategies Support

Accommodates various caching strategies like Lazy Loading (cache-aside) and Write-Through, offering flexibility in how data is handled between the cache and the primary database.

Cost Optimization Features

Offers various pricing models including On-Demand, Reserved Instances (for discounted long-term use), and Data Tiering to help optimize costs.

Compliance Certifications

Adheres to leading security and compliance standards, including HIPAA eligibility, FedRAMP authorization, and PCI DSS compliance.