Amazon ElastiCache
API Reference (API Version 2015-02-02)

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Node group (shard) configuration options. Each node group (shard) configuration has the following: Slots, PrimaryAvailabilityZone, ReplicaAvailabilityZones, ReplicaCount.



In the following list, the required parameters are described first.


Either the ElastiCache for Redis supplied 4-digit id or a user supplied id for the node group these configuration values apply to.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 4.

Pattern: \d+

Required: No


The Availability Zone where the primary node of this node group (shard) is launched.

Type: String

Required: No


A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must match the value of ReplicaCount or ReplicasPerNodeGroup if not specified.

Type: Array of strings

Required: No


The number of read replica nodes in this node group (shard).

Type: Integer

Required: No


A string that specifies the keyspace for a particular node group. Keyspaces range from 0 to 16,383. The string is in the format startkey-endkey.

Example: "0-3999"

Type: String

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

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