CacheNode
Represents an individual cache node within a cluster. Each cache node runs its own instance of the cluster's protocol-compliant caching software - either Memcached, Valkey or Redis OSS.
The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.
General purpose:
Current generation: M7g node types:
cache.m7g.large,cache.m7g.xlarge,cache.m7g.2xlarge,cache.m7g.4xlarge,cache.m7g.8xlarge,cache.m7g.12xlarge,cache.m7g.16xlargeFor region availability, see Supported Node TypesM6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward):cache.m6g.large,cache.m6g.xlarge,cache.m6g.2xlarge,cache.m6g.4xlarge,cache.m6g.8xlarge,cache.m6g.12xlarge,cache.m6g.16xlargeM5 node types:cache.m5.large,cache.m5.xlarge,cache.m5.2xlarge,cache.m5.4xlarge,cache.m5.12xlarge,cache.m5.24xlargeM4 node types:cache.m4.large,cache.m4.xlarge,cache.m4.2xlarge,cache.m4.4xlarge,cache.m4.10xlargeT4g node types (available only for Redis OSS engine version 5.0.6 onward and Memcached engine version 1.5.16 onward):cache.t4g.micro,cache.t4g.small,cache.t4g.mediumT3 node types:cache.t3.micro,cache.t3.small,cache.t3.mediumT2 node types:cache.t2.micro,cache.t2.small,cache.t2.mediumPrevious generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.)T1 node types:
cache.t1.microM1 node types:cache.m1.small,cache.m1.medium,cache.m1.large,cache.m1.xlargeM3 node types:cache.m3.medium,cache.m3.large,cache.m3.xlarge,cache.m3.2xlargeCompute optimized:
Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.)C1 node types:
cache.c1.xlargeMemory optimized:
Current generation: R7g node types:
cache.r7g.large,cache.r7g.xlarge,cache.r7g.2xlarge,cache.r7g.4xlarge,cache.r7g.8xlarge,cache.r7g.12xlarge,cache.r7g.16xlargeFor region availability, see Supported Node TypesR6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward):cache.r6g.large,cache.r6g.xlarge,cache.r6g.2xlarge,cache.r6g.4xlarge,cache.r6g.8xlarge,cache.r6g.12xlarge,cache.r6g.16xlargeR5 node types:cache.r5.large,cache.r5.xlarge,cache.r5.2xlarge,cache.r5.4xlarge,cache.r5.12xlarge,cache.r5.24xlargeR4 node types:cache.r4.large,cache.r4.xlarge,cache.r4.2xlarge,cache.r4.4xlarge,cache.r4.8xlarge,cache.r4.16xlargePrevious generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.)M2 node types:
cache.m2.xlarge,cache.m2.2xlarge,cache.m2.4xlargeR3 node types:cache.r3.large,cache.r3.xlarge,cache.r3.2xlarge,cache.r3.4xlarge,cache.r3.8xlarge
Additional node type info
All current generation instance types are created in Amazon VPC by default.
Valkey or Redis OSS append-only files (AOF) are not supported for T1 or T2 instances.
Valkey or Redis OSS Multi-AZ with automatic failover is not supported on T1 instances.
The configuration variables
appendonlyandappendfsyncare not supported on Valkey, or on Redis OSS version 2.8.22 and later.
Types
Properties
The date and time when the cache node was created.
The cache node identifier. A node ID is a numeric identifier (0001, 0002, etc.). The combination of cluster ID and node ID uniquely identifies every cache node used in a customer's Amazon account.
The current state of this cache node, one of the following values: available, creating, rebooting, or deleting.
The Availability Zone where this node was created and now resides.
The customer outpost ARN of the cache node.
The status of the parameter group applied to this cache node.
The ID of the primary node to which this read replica node is synchronized. If this field is empty, this node is not associated with a primary cluster.