Using MemoryDB Multi-Region with the CLI

Below are ways to use MemoryDB Multi-Region with the CLI

Creating clusters with MemoryDBMulti Region

Create a Multi Region cluster

aws memorydb create-multi-region-cluster \
	--multi-region-cluster-name-suffix my-multi-region-cluster \
	--node-type db.r7g.xlarge \
	--engine valkey \
	--region us-east-1

Create a regional cluster in US East (N. Virginia) Region

aws memorydb create-cluster \
	--cluster-name my-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--node-type db.r7g.xlarge \
	--acl-name open-access \
	--region us-east-1 \

Create a Region cluster in Europe (Ireland) Region

aws memorydb create-cluster \
	--cluster-name my-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--node-type db.r7g.xlarge \
	--acl-name open-access \
	--region eu-west-1 \

Describe the Multi Region cluster from any Region

aws memorydb describe-multi-region-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--region eu-west-1 

Update a Multi Region cluster

Modifying Node Type

aws memorydb update-multi-region-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--node-type db.r7g.4xlarge \
	--region us-east-1

Modifying shard count

aws memorydb update-multi-region-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--shard-configuration \
	ShardCount=3 \
	--update-strategy COORDINATED \
	--region us-east-1

Scaling MemoryDB clusters

First, list the nodes that can scale up or down with the list-allowed-node-type-updates command:

aws memorydb list-allowed-node-type-updates \
	--cluster-name my-cluster-name 

This will provide a list of nodes that can be scaled up or down. To then update them, you can use the update-cluster command:

aws memorydb update-cluster  \
	--cluster-name my-cluster \
	--node-type db.r6g.2xlarge

For more information on scaling with Multi-Region see Scaling with MemoryDB Multi-Region.

Deleting clusters in MemoryDB Multi-Region

Delete a regional cluster

aws memorydb delete-cluster \	
	--cluster-name my-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--region us-east-1

Delete a Multi Region cluster

aws memorydb delete-multi-region-cluster \
	--multi-region-cluster-name my-multi-region-cluster \
	--region us-east-1