Viewing a cluster's details
You can view detail information about one or more clusters using the MemoryDB console, Amazon CLI, or MemoryDB API.
The following procedure details how to view the details of a MemoryDB cluster using the MemoryDB console.
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Sign in to the Amazon Web Services Management Console and open the MemoryDB for Redis console at https://console.amazonaws.cn/memorydb/
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To see details of a cluster, choose the radio button to the left of the cluster's name and then choose View details. You can also click directly on the cluster to view the cluster details page.
The Cluster details page displays details about the cluster, including the cluster endpoint. You can view more details using the multiple tabs available in the Cluster details page.
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Choose the Shards and nodes tab to see a listing of the cluster's shards and the number of nodes in each shard.
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To view specific information on a node, expand the shard in the table below. Alternatively you can also search for the shard using the search box.
Doing this displays information about each node, including its Availability Zone, slots/keyspaces and status.
Choose the Metrics tab to monitor their respective processes, such as CPU Utilization and Engine CPU Utilization. For more information, see Metrics for MemoryDB.
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Choose the Network and security tab to see details of the subnet group and security groups.
In Subnet group, you can see the subnet group's name, a link to the VPC that subnet belongs to and the subnet group's Amazon Resource Name (ARN).
In Security groups, you can see the security group ID, name and description.
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Choose the Maintenace and snapshot tab to see details of the snapshot settings.
In Snapshot, you can see whether Automated Snapshots are enabled, the snapshot retention period and the snapshot window.
In Snapshots, you will see a list of any snapshots to this cluster, including the snapshot name, size, number of shards and status.
For more information, see Snapshot and restore .
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Choose the Maintenace and snapshot tab to see details of the Maintenance Window, along with any pending ACL, Resharding or Service updates. For more information, see Managing maintenance.
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Choose the Service Updates tab to see details of the any service updates that are applicable to this cluster. For more information, see Service updates in MemoryDB for Redis.
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Choose the Tags tab to see details of any resource or cost-allocation tags that are associated with this cluster. For more information, see Tagging snapshots.
You can view the details for a cluster using the Amazon CLI describe-clusters command.
If the --cluster-name parameter is omitted, details for multiple clusters, up to --max-results, are returned.
If the --cluster-name parameter is included, details for the specified cluster are returned.
You can limit the number of records returned with the --max-results parameter.
The following code lists the details for my-cluster.
aws memorydb describe-clusters --cluster-namemy-cluster
The following code list the details for up to 25 clusters.
aws memorydb describe-clusters --max-results25
For Linux, OS X, or Unix:
aws memorydb describe-clusters \ --cluster-namemy-cluster\ --show-shard-details
For Windows:
aws memorydb describe-clusters ^ --cluster-namemy-cluster^ --show-shard-details
The following JSON output shows the response:
{
"Clusters": [
{
"Name": "my-cluster",
"Description": "my cluster",
"Status": "available",
"NumberOfShards": 1,
"Shards": [
{
"Name": "0001",
"Status": "available",
"Slots": "0-16383",
"Nodes": [
{
"Name": "my-cluster-0001-001",
"Status": "available",
"AvailabilityZone": "us-east-1a",
"CreateTime": 1629230643.961,
"Endpoint": {
"Address": "my-cluster-0001-001.my-cluster.abcdef.memorydb.us-east-1.amazonaws.com",
"Port": 6379
}
},
{
"Name": "my-cluster-0001-002",
"Status": "available",
"CreateTime": 1629230644.025,
"Endpoint": {
"Address": "my-cluster-0001-002.my-cluster.abcdef.memorydb.us-east-1.amazonaws.com",
"Port": 6379
}
}
],
"NumberOfNodes": 2
}
],
"ClusterEndpoint": {
"Address": "clustercfg.my-cluster.abcdef.memorydb.us-east-1.amazonaws.com",
"Port": 6379
},
"NodeType": "db.r6g.large",
"EngineVersion": "6.2",
"EnginePatchVersion": "6.2.6",
"ParameterGroupName": "default.memorydb-redis6",
"ParameterGroupStatus": "in-sync",
"SubnetGroupName": "default",
"TLSEnabled": true,
"ARN": "arn:aws:memorydb:us-east-1:000000000:cluster/my-cluster",
"SnapshotRetentionLimit": 0,
"MaintenanceWindow": "sat:06:30-sat:07:30",
"SnapshotWindow": "04:00-05:00",
"ACLName": "open-access",
"DataTiering": "false",
"AutoMinorVersionUpgrade": true,
}
For more information, see the Amazon CLI for MemoryDB topic describe-clusters.
You can view the details for a cluster using the MemoryDB API DescribeClusters action.
If the ClusterName parameter is included, details for the specified cluster are returned.
If the ClusterName parameter is omitted, details for up to MaxResults (default 100)
clusters are returned.
The value for MaxResults cannot be less than 20 or greater than 100.
The following code lists the details for my-cluster.
https://memory-db.us-east-1.amazonaws.com/ ?Action=DescribeClusters &ClusterName=my-cluster &Version=2021-01-01 &SignatureVersion=4 &SignatureMethod=HmacSHA256 &Timestamp=20210802T192317Z &X-Amz-Credential=<credential>
The following code list the details for up to 25 clusters.
https://memory-db.us-east-1.amazonaws.com/ ?Action=DescribeClusters &MaxResults=25 &Version=2021-02-02 &SignatureVersion=4 &SignatureMethod=HmacSHA256 &Timestamp=20210802T192317Z &X-Amz-Credential=<credential>
For more information, see the MemoryDB API reference topic DescribeClusters.