[ aws . elasticache ]



Modifies the settings for a Global Datastore.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.


--global-replication-group-id <value>
--apply-immediately | --no-apply-immediately
[--cache-node-type <value>]
[--engine-version <value>]
[--global-replication-group-description <value>]
[--automatic-failover-enabled | --no-automatic-failover-enabled]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]


--global-replication-group-id (string)

The name of the Global Datastore

--apply-immediately | --no-apply-immediately (boolean)

This parameter causes the modifications in this request and any pending modifications to be applied, asynchronously and as soon as possible. Modifications to Global Replication Groups cannot be requested to be applied in PreferredMaintenceWindow.

--cache-node-type (string)

A valid cache node type that you want to scale this Global Datastore to.

--engine-version (string)

The upgraded version of the cache engine to be run on the clusters in the Global Datastore.

--global-replication-group-description (string)

A description of the Global Datastore

--automatic-failover-enabled | --no-automatic-failover-enabled (boolean)

Determines whether a read replica is automatically promoted to read/write primary if the existing primary encounters a failure.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

--cli-auto-prompt (boolean) Automatically prompt for CLI input parameters.

See ‘aws help’ for descriptions of global parameters.


To modify a global replication group

The following modify-global-replication-group modifies the properties of a global replication group, in this case disabling automatic failover, using the Redis engine.

aws elasticache modify-global-replication-group \
    --global-replication-group-id sgaui-pat-group \
    --apply-immediately \


    "GlobalReplicationGroup": {
        "GlobalReplicationGroupId": "sgaui-test-group",
        "GlobalReplicationGroupDescription": " ",
        "Status": "modifying",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "ClusterEnabled": false,
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false

For more information, see Replication Across AWS Regions Using Global Datastore in the Elasticache User Guide.


GlobalReplicationGroup -> (structure)

Consists of a primary cluster that accepts writes and an associated secondary cluster that resides in a different AWS 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.

GlobalReplicationGroupId -> (string)

The name of the Global Datastore

GlobalReplicationGroupDescription -> (string)

The optional description of the Global Datastore

Status -> (string)

The status of the Global Datastore

CacheNodeType -> (string)

The cache node type of the Global Datastore

Engine -> (string)

The Elasticache engine. For Redis only.

EngineVersion -> (string)

The Elasticache Redis engine version. For preview, it is Redis version 5.0.5 only.

Members -> (list)

The replication groups that comprise the Global Datastore.


A member of a Global Datastore. It contains the Replication Group Id, the AWS region and the role of the replication group.

ReplicationGroupId -> (string)

The replication group id of the Global Datastore member.

ReplicationGroupRegion -> (string)

The AWS region of the Global Datastore member.

Role -> (string)

Indicates the role of the replication group, primary or secondary.

AutomaticFailover -> (string)

Indicates whether automatic failover is enabled for the replication group.

Status -> (string)

The status of the membership of the replication group.

ClusterEnabled -> (boolean)

A flag that indicates whether the Global Datastore is cluster enabled.

GlobalNodeGroups -> (list)

Indicates the slot configuration and global identifier for each slice group.


Indicates the slot configuration and global identifier for a slice group.

GlobalNodeGroupId -> (string)

The name of the global node group

Slots -> (string)

The keyspace for this node group

AuthTokenEnabled -> (boolean)

A flag that enables using an AuthToken (password) when issuing Redis commands.

Default: false

TransitEncryptionEnabled -> (boolean)

A flag that enables in-transit encryption when set to true. You cannot modify the value of TransitEncryptionEnabled after the cluster is created. To enable in-transit encryption on a cluster you must set TransitEncryptionEnabled to true when you create a cluster.

AtRestEncryptionEnabled -> (boolean)

A flag that enables encryption at rest when set to true .

You cannot modify the value of AtRestEncryptionEnabled after the replication group is created. To enable encryption at rest on a replication group you must set AtRestEncryptionEnabled to true when you create the replication group.

Required: Only available when creating a replication group in an Amazon VPC using redis version 3.2.6 , 4.x or later.

ARN -> (string)

The ARN (Amazon Resource Name) of the global replication group.