AWS::ElastiCache::GlobalReplicationGroup - Amazon CloudFormation
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AWS::ElastiCache::GlobalReplicationGroup

Consists of a primary cluster that accepts writes and an associated secondary cluster that resides in a different Amazon region. The secondary cluster accepts only reads. The primary cluster automatically replicates updates to the secondary cluster.

  • The GlobalReplicationGroupIdSuffix represents the name of the Global datastore, which is what you use to associate a secondary cluster.

Syntax

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

JSON

{ "Type" : "AWS::ElastiCache::GlobalReplicationGroup", "Properties" : { "AutomaticFailoverEnabled" : Boolean, "CacheNodeType" : String, "CacheParameterGroupName" : String, "EngineVersion" : String, "GlobalNodeGroupCount" : Integer, "GlobalReplicationGroupDescription" : String, "GlobalReplicationGroupIdSuffix" : String, "Members" : [ GlobalReplicationGroupMember, ... ], "RegionalConfigurations" : [ RegionalConfiguration, ... ] } }

Properties

AutomaticFailoverEnabled

Specifies whether a read-only replica is automatically promoted to read/write primary if the existing primary fails.

AutomaticFailoverEnabled must be enabled for Redis (cluster mode enabled) replication groups.

Required: No

Type: Boolean

Update requires: No interruption

CacheNodeType

The cache node type of the Global datastore

Required: No

Type: String

Update requires: No interruption

CacheParameterGroupName

The name of the cache parameter group to use with the Global datastore. It must be compatible with the major engine version used by the Global datastore.

Required: No

Type: String

Update requires: No interruption

EngineVersion

The Elasticache Redis engine version.

Required: No

Type: String

Update requires: No interruption

GlobalNodeGroupCount

The number of node groups that comprise the Global Datastore.

Required: No

Type: Integer

Update requires: No interruption

GlobalReplicationGroupDescription

The optional description of the Global datastore

Required: No

Type: String

Update requires: No interruption

GlobalReplicationGroupIdSuffix

The suffix name of a Global Datastore. The suffix guarantees uniqueness of the Global Datastore name across multiple regions.

Required: No

Type: String

Update requires: No interruption

Members

The replication groups that comprise the Global datastore.

Required: Yes

Type: List of GlobalReplicationGroupMember

Update requires: No interruption

RegionalConfigurations

The Amazon Regions that comprise the Global Datastore.

Required: No

Type: List of RegionalConfiguration

Update requires: No interruption

Return values

Ref

Fn::GetAtt

GlobalReplicationGroupId

The ID used to associate a secondary cluster to the Global Replication Group.

Status

The status of the Global Datastore. Can be Creating, Modifying, Available, Deleting or Primary-Only. Primary-only status indicates the global datastore contains only a primary cluster. Either all secondary clusters are deleted or not successfully created.