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 AWS 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, ... ]
    }
}

YAML

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: Array of GlobalReplicationGroupMember

Minimum: 1

Update requires: No interruption

RegionalConfigurations

The Regions that comprise the Global Datastore.

Required: No

Type: Array 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.