DAX examples using Amazon CLI - Amazon Command Line Interface
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DAX examples using Amazon CLI

The following code examples show you how to perform actions and implement common scenarios by using the Amazon Command Line Interface with DAX.

Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios and cross-service examples.

Scenarios are code examples that show you how to accomplish a specific task by calling multiple functions within the same service.

Each example includes a link to GitHub, where you can find instructions on how to set up and run the code in context.

Topics

Actions

The following code example shows how to use create-cluster.

Amazon CLI

To create a DAX cluster

The following create-cluster example creates a DAX cluster with the specified settings.

aws dax create-cluster \
    --cluster-name daxcluster \
    --node-type dax.r4.large \
    --replication-factor 3 \
    --iam-role-arn roleARN  \
    --sse-specification Enabled=true

Output:

{
    "Cluster": {
        "ClusterName": "daxcluster",
        "ClusterArn": "arn:aws:dax:us-west-2:123456789012:cache/daxcluster",
        "TotalNodes": 3,
        "ActiveNodes": 0,
        "NodeType": "dax.r4.large",
        "Status": "creating",
        "ClusterDiscoveryEndpoint": {
            "Port": 8111
        },
        "PreferredMaintenanceWindow": "thu:13:00-thu:14:00",
        "SubnetGroup": "default",
        "SecurityGroups": [
            {
                "SecurityGroupIdentifier": "sg-1af6e36e",
                "Status": "active"
            }
        ],
        "IamRoleArn": "arn:aws:iam::123456789012:role/DAXServiceRoleForDynamoDBAccess",
        "ParameterGroup": {
            "ParameterGroupName": "default.dax1.0",
            "ParameterApplyStatus": "in-sync",
            "NodeIdsToReboot": []
        },
        "SSEDescription": {
            "Status": "ENABLED"
        }
    }
}

For more information, see Step 3: Create a DAX Cluster in the Amazon DynamoDB Developer Guide.

  • For API details, see CreateCluster in Amazon CLI Command Reference.

The following code example shows how to use create-parameter-group.

Amazon CLI

To create a parameter group

The following `` create-parameter-group`` example creates a parameter group with the specified settings.

aws dax create-parameter-group \
    --parameter-group-name daxparametergroup \
    --description "A new parameter group"

Output:

{
    "ParameterGroup": {
        "ParameterGroupName": "daxparametergroup",
        "Description": "A new parameter group"
    }
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use create-subnet-group.

Amazon CLI

To create a DAX subnet group

The following create-subnet-group example creates a subnet group with the specified settings.

aws dax create-subnet-group \
    --subnet-group-name daxSubnetGroup \
    --subnet-ids subnet-11111111 subnet-22222222

Output:

{
    "SubnetGroup": {
        "SubnetGroupName": "daxSubnetGroup",
        "VpcId": "vpc-05a1fa8e00c325226",
        "Subnets": [
            {
                "SubnetIdentifier": "subnet-11111111",
                "SubnetAvailabilityZone": "us-west-2b"
            },
            {
                "SubnetIdentifier": "subnet-22222222",
                "SubnetAvailabilityZone": "us-west-2c"
            }
        ]
    }
}

For more information, see Step 2: Create a Subnet Group in the Amazon DynamoDB Developer Guide.

The following code example shows how to use decrease-replication-factor.

Amazon CLI

To remove one or more nodes from the cluster

The following decrease-replication-factor example decreases the number of nodes in the specified DAX cluster to one.

aws dax decrease-replication-factor \
    --cluster-name daxcluster \
    --new-replication-factor 1

Output:

{
    "Cluster": {
        "ClusterName": "daxcluster",
        "ClusterArn": "arn:aws:dax:us-west-2:123456789012:cache/daxcluster",
        "TotalNodes": 3,
        "ActiveNodes": 3,
        "NodeType": "dax.r4.large",
        "Status": "modifying",
        "ClusterDiscoveryEndpoint": {
            "Address": "daxcluster.ey3o9d.clustercfg.dax.usw2.cache.amazonaws.com",
            "Port": 8111
        },
        "Nodes": [
            {
                "NodeId": "daxcluster-a",
                "Endpoint": {
                    "Address": "daxcluster-a.ey3o9d.0001.dax.usw2.cache.amazonaws.com",
                    "Port": 8111
                },
                "NodeCreateTime": 1576625059.509,
                "AvailabilityZone": "us-west-2c",
                "NodeStatus": "available",
                "ParameterGroupStatus": "in-sync"
            },
            {
                "NodeId": "daxcluster-b",
                "Endpoint": {
                    "Address": "daxcluster-b.ey3o9d.0001.dax.usw2.cache.amazonaws.com",
                    "Port": 8111
                },
                "NodeCreateTime": 1576625059.509,
                "AvailabilityZone": "us-west-2a",
                "NodeStatus": "available",
                "ParameterGroupStatus": "in-sync"
            },
            {
                "NodeId": "daxcluster-c",
                "Endpoint": {
                    "Address": "daxcluster-c.ey3o9d.0001.dax.usw2.cache.amazonaws.com",
                    "Port": 8111
                },
                "NodeCreateTime": 1576625059.509,
                "AvailabilityZone": "us-west-2b",
                "NodeStatus": "available",
                "ParameterGroupStatus": "in-sync"
            }
        ],
        "PreferredMaintenanceWindow": "thu:13:00-thu:14:00",
        "SubnetGroup": "default",
        "SecurityGroups": [
            {
                "SecurityGroupIdentifier": "sg-1af6e36e",
                "Status": "active"
            }
        ],
        "IamRoleArn": "arn:aws:iam::123456789012:role/DAXServiceRoleForDynamoDBAccess",
        "ParameterGroup": {
            "ParameterGroupName": "default.dax1.0",
            "ParameterApplyStatus": "in-sync",
            "NodeIdsToReboot": []
        },
        "SSEDescription": {
            "Status": "ENABLED"
        }
    }
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use delete-cluster.

Amazon CLI

To delete a DAX cluster

The following delete-cluster example deletes the specified DAX cluster.

aws dax delete-cluster \
    --cluster-name daxcluster

Output:

{
    "Cluster": {
        "ClusterName": "daxcluster",
        "ClusterArn": "arn:aws:dax:us-west-2:123456789012:cache/daxcluster",
        "TotalNodes": 3,
        "ActiveNodes": 0,
        "NodeType": "dax.r4.large",
        "Status": "deleting",
        "ClusterDiscoveryEndpoint": {
            "Address": "dd.ey3o9d.clustercfg.dax.usw2.cache.amazonaws.com",
            "Port": 8111
        },
        "PreferredMaintenanceWindow": "fri:06:00-fri:07:00",
        "SubnetGroup": "default",
        "SecurityGroups": [
            {
                "SecurityGroupIdentifier": "sg-1af6e36e",
                "Status": "active"
            }
        ],
        "IamRoleArn": "arn:aws:iam::123456789012:role/DAXServiceRoleForDynamoDBAccess",
        "ParameterGroup": {
            "ParameterGroupName": "default.dax1.0",
            "ParameterApplyStatus": "in-sync",
            "NodeIdsToReboot": []
        },
        "SSEDescription": {
            "Status": "ENABLED"
        }
    }
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

  • For API details, see DeleteCluster in Amazon CLI Command Reference.

The following code example shows how to use delete-parameter-group.

Amazon CLI

To delete a parameter group

The following delete-parameter-group example deletes the specified DAX parameter group.

aws dax  delete-parameter-group \
    --parameter-group-name daxparametergroup

Output:

{
    "DeletionMessage": "Parameter group daxparametergroup has been deleted."
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use delete-subnet-group.

Amazon CLI

To delete a subnet group

The following delete-subnet-group example deletes the specified DAX subnet group.

aws dax delete-subnet-group \
    --subnet-group-name daxSubnetGroup

Output:

{
    "DeletionMessage": "Subnet group daxSubnetGroup has been deleted."
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use describe-clusters.

Amazon CLI

To return information about all provisioned DAX clusters

The following describe-clusters example displays details about all provisioned DAX clusters.

aws dax describe-clusters

Output:

{
    "Clusters": [
        {
            "ClusterName": "daxcluster",
            "ClusterArn": "arn:aws:dax:us-west-2:123456789012:cache/daxcluster",
            "TotalNodes": 1,
            "ActiveNodes": 1,
            "NodeType": "dax.r4.large",
            "Status": "available",
            "ClusterDiscoveryEndpoint": {
                "Address": "daxcluster.ey3o9d.clustercfg.dax.usw2.cache.amazonaws.com",
                "Port": 8111
            },
            "Nodes": [
                {
                    "NodeId": "daxcluster-a",
                    "Endpoint": {
                        "Address": "daxcluster-a.ey3o9d.0001.dax.usw2.cache.amazonaws.com",
                        "Port": 8111
                    },
                    "NodeCreateTime": 1576625059.509,
                    "AvailabilityZone": "us-west-2c",
                    "NodeStatus": "available",
                    "ParameterGroupStatus": "in-sync"
                }
            ],
            "PreferredMaintenanceWindow": "thu:13:00-thu:14:00",
            "SubnetGroup": "default",
            "SecurityGroups": [
                {
                    "SecurityGroupIdentifier": "sg-1af6e36e",
                    "Status": "active"
                }
            ],
            "IamRoleArn": "arn:aws:iam::123456789012:role/DAXServiceRoleForDynamoDBAccess",
            "ParameterGroup": {
                "ParameterGroupName": "default.dax1.0",
                "ParameterApplyStatus": "in-sync",
                "NodeIdsToReboot": []
            },
            "SSEDescription": {
                "Status": "ENABLED"
            }
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use describe-default-parameters.

Amazon CLI

To return the default system parameter information for DAX

The following describe-default-parameters example displays the default system parameter information for DAX.

aws dax describe-default-parameters

Output:

{
    "Parameters": [
        {
            "ParameterName": "query-ttl-millis",
            "ParameterType": "DEFAULT",
            "ParameterValue": "300000",
            "NodeTypeSpecificValues": [],
            "Description": "Duration in milliseconds for queries to remain cached",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": "TRUE",
            "ChangeType": "IMMEDIATE"
        },
        {
            "ParameterName": "record-ttl-millis",
            "ParameterType": "DEFAULT",
            "ParameterValue": "300000",
            "NodeTypeSpecificValues": [],
            "Description": "Duration in milliseconds for records to remain valid in cache (Default: 0 = infinite)",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": "TRUE",
            "ChangeType": "IMMEDIATE"
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use describe-events.

Amazon CLI

To return all events related to DAX clusters and parameter groups

The following describe-events example displays details of events that are related to DAX clusters and parameter groups.

aws dax describe-events

Output:

{
    "Events": [
        {
            "SourceName": "daxcluster",
            "SourceType": "CLUSTER",
            "Message": "Cluster deleted.",
            "Date": 1576702736.706
        },
        {
            "SourceName": "daxcluster",
            "SourceType": "CLUSTER",
            "Message": "Removed node daxcluster-b.",
            "Date": 1576702691.738
        },
        {
            "SourceName": "daxcluster",
            "SourceType": "CLUSTER",
            "Message": "Removed node daxcluster-a.",
            "Date": 1576702633.498
        },
        {
            "SourceName": "daxcluster",
            "SourceType": "CLUSTER",
            "Message": "Removed node daxcluster-c.",
            "Date": 1576702631.329
        },
        {
            "SourceName": "daxcluster",
            "SourceType": "CLUSTER",
            "Message": "Cluster created.",
            "Date": 1576626560.057
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

  • For API details, see DescribeEvents in Amazon CLI Command Reference.

The following code example shows how to use describe-parameter-groups.

Amazon CLI

To describe the parameter groups defined in DAX

The following describe-parameter-groups example retrieves details about the parameter groups that are defined in DAX.

aws dax describe-parameter-groups

Output:

{
    "ParameterGroups": [
        {
            "ParameterGroupName": "default.dax1.0",
            "Description": "Default parameter group for dax1.0"
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use describe-parameters.

Amazon CLI

To describe the parameters defined in a DAX parameter group

The following describe-parameters example retrieves details about the parameters that are defined in the specified DAX parameter group.

aws dax describe-parameters \
    --parameter-group-name default.dax1.0

Output:

{
    "Parameters": [
        {
            "ParameterName": "query-ttl-millis",
            "ParameterType": "DEFAULT",
            "ParameterValue": "300000",
            "NodeTypeSpecificValues": [],
            "Description": "Duration in milliseconds for queries to remain cached",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": "TRUE",
            "ChangeType": "IMMEDIATE"
        },
        {
            "ParameterName": "record-ttl-millis",
            "ParameterType": "DEFAULT",
            "ParameterValue": "300000",
            "NodeTypeSpecificValues": [],
            "Description": "Duration in milliseconds for records to remain valid in cache (Default: 0 = infinite)",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": "TRUE",
            "ChangeType": "IMMEDIATE"
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use describe-subnet-groups.

Amazon CLI

To describe subnet groups defined in DAX

The following describe-subnet-groups example retrieves details for the subnet groups defined in DAX.

aws dax describe-subnet-groups

Output:

{
    "SubnetGroups": [
        {
            "SubnetGroupName": "default",
            "Description": "Default CacheSubnetGroup",
            "VpcId": "vpc-ee70a196",
            "Subnets": [
                {
                    "SubnetIdentifier": "subnet-874953af",
                    "SubnetAvailabilityZone": "us-west-2d"
                },
                {
                    "SubnetIdentifier": "subnet-bd3d1fc4",
                    "SubnetAvailabilityZone": "us-west-2a"
                },
                {
                    "SubnetIdentifier": "subnet-72c2ff28",
                    "SubnetAvailabilityZone": "us-west-2c"
                },
                {
                    "SubnetIdentifier": "subnet-09e6aa42",
                    "SubnetAvailabilityZone": "us-west-2b"
                }
            ]
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use increase-replication-factor.

Amazon CLI

To increase the replication factor for a DAX cluster

The following increase-replication-factor example increases the specified DAX cluster's replication factor to 3.

aws dax increase-replication-factor \
    --cluster-name daxcluster \
    --new-replication-factor 3

Output:

{
    "Cluster": {
        "ClusterName": "daxcluster",
        "ClusterArn": "arn:aws:dax:us-west-2:123456789012:cache/daxcluster",
        "TotalNodes": 3,
        "ActiveNodes": 1,
        "NodeType": "dax.r4.large",
        "Status": "modifying",
        "ClusterDiscoveryEndpoint": {
            "Address": "daxcluster.ey3o9d.clustercfg.dax.usw2.cache.amazonaws.com",
            "Port": 8111
        },
        "Nodes": [
            {
                "NodeId": "daxcluster-a",
                "Endpoint": {
                    "Address": "daxcluster-a.ey3o9d.0001.dax.usw2.cache.amazonaws.com",
                    "Port": 8111
                },
                "NodeCreateTime": 1576625059.509,
                "AvailabilityZone": "us-west-2c",
                "NodeStatus": "available",
                "ParameterGroupStatus": "in-sync"
            },
            {
                "NodeId": "daxcluster-b",
                "NodeStatus": "creating"
            },
            {
                "NodeId": "daxcluster-c",
                "NodeStatus": "creating"
            }
        ],
        "PreferredMaintenanceWindow": "thu:13:00-thu:14:00",
        "SubnetGroup": "default",
        "SecurityGroups": [
            {
                "SecurityGroupIdentifier": "sg-1af6e36e",
                "Status": "active"
            }
        ],
        "IamRoleArn": "arn:aws:iam::123456789012:role/DAXServiceRoleForDynamoDBAccess",
        "ParameterGroup": {
            "ParameterGroupName": "default.dax1.0",
            "ParameterApplyStatus": "in-sync",
            "NodeIdsToReboot": []
        },
        "SSEDescription": {
            "Status": "ENABLED"
        }
    }
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

The following code example shows how to use list-tags.

Amazon CLI

To list tags on a DAX resource

The following list-tags example lists the tag keys and values attached to the specified DAX cluster.

aws dax list-tags \
    --resource-name arn:aws:dax:us-west-2:123456789012:cache/daxcluster

Output:

{
    "Tags": [
        {
            "Key": "ClusterUsage",
            "Value": "prod"
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

  • For API details, see ListTags in Amazon CLI Command Reference.

The following code example shows how to use tag-resource.

Amazon CLI

To tag a DAX resource

The following tag-resource example attaches the specified tag key name and associated value to the specified DAX cluster to describe the cluster usage.

aws dax tag-resource \
    --resource-name arn:aws:dax:us-west-2:123456789012:cache/daxcluster \
    --tags="Key=ClusterUsage,Value=prod"

Output:

{
    "Tags": [
        {
            "Key": "ClusterUsage",
            "Value": "prod"
        }
    ]
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

  • For API details, see TagResource in Amazon CLI Command Reference.

The following code example shows how to use untag-resource.

Amazon CLI

To remove tags from a DAX resource

The following untag-resource example removes the tag with the specified key name from a DAX cluster.

aws dax untag-resource  \
    --resource-name arn:aws:dax:us-west-2:123456789012:cache/daxcluster \
    --tag-keys="ClusterUsage"

Output:

{
    "Tags": []
}

For more information, see Managing DAX Clusters in the Amazon DynamoDB Developer Guide.

  • For API details, see UntagResource in Amazon CLI Command Reference.