AWS CloudFormation
User Guide (API Version 2010-05-15)

Amazon ElastiCache ReplicationGroup NodeGroupConfiguration

NodeGroupConfiguration is a property of the AWS::ElastiCache::ReplicationGroup resource that configures an Amazon ElastiCache (ElastiCache) Redis cluster node group.


To declare this entity in your AWS CloudFormation template, use the following syntax:


{ "PrimaryAvailabilityZone" : String, "ReplicaAvailabilityZones" : [ String, ... ], "ReplicaCount" : Integer, "Slots" : String }


PrimaryAvailabilityZone: String ReplicaAvailabilityZones: - String ReplicaCount: Integer Slots: String



The Availability Zone where ElastiCache launches the node group's primary node.

Required: No

Type: String


A list of Availability Zones where ElastiCache launches the read replicas. The number of Availability Zones must match the value of the ReplicaCount property or, if you don't specify the ReplicaCount property, the replication group's ReplicasPerNodeGroup property.

Required: No

Type: List of String values


The number of read replica nodes in the node group.

Required: No

Type: Integer


A string of comma-separated values where the first set of values are the slot numbers (zero based), and the second set of values are the keyspaces for each slot. The following example specifies three slots (numbered 0, 1, and 2): 0,1,2,0-4999,5000-9999,10000-16,383.

If you don't specify a value, ElastiCache allocates keys equally among each slot.

Required: No

Type: String

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