describe-reserved-cache-nodes¶

Description¶

Returns information about reserved cache nodes for this account, or about a specified reserved cache node.

Synopsis¶

  describe-reserved-cache-nodes
[--reserved-cache-node-id <value>]
[--reserved-cache-nodes-offering-id <value>]
[--cache-node-type <value>]
[--duration <value>]
[--product-description <value>]
[--offering-type <value>]
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]

Options¶

--reserved-cache-node-id (string)

The reserved cache node identifier filter value. Use this parameter to show only the reservation that matches the specified reservation ID.

--reserved-cache-nodes-offering-id (string)

The offering identifier filter value. Use this parameter to show only purchased reservations matching the specified offering identifier.

--cache-node-type (string)

The cache node type filter value. Use this parameter to show only those reservations matching the specified cache node type.

The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.

General purpose:

Current generation: M6g node types: (available only for Redis engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward): cache.m6g.large , cache.m6g.xlarge , cache.m6g.2xlarge , cache.m6g.4xlarge , cache.m6g.8xlarge , cache.m6g.12xlarge , cache.m6g.16xlarge

Note

For region availability, see Supported Node Types

M5 node types: cache.m5.large , cache.m5.xlarge , cache.m5.2xlarge , cache.m5.4xlarge , cache.m5.12xlarge , cache.m5.24xlarge M4 node types: cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge T4g node types (available only for Redis engine version 6.0 onward and for Memcached engine version 1.5.16 onward): cache.t4g.micro , cache.t4g.small , cache.t4g.medium T3 node types: cache.t3.micro , cache.t3.small , cache.t3.medium T2 node types: cache.t2.micro , cache.t2.small , cache.t2.medium

Previous generation: (not recommended) T1 node types: cache.t1.micro M1 node types: cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge M3 node types: cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge

Compute optimized:

Previous generation: (not recommended) C1 node types: cache.c1.xlarge

Memory optimized with data tiering:

Current generation: R6gd node types (available only for Redis engine version 6.2 onward). cache.r6gd.xlarge , cache.r6gd.2xlarge , cache.r6gd.4xlarge , cache.r6gd.8xlarge , cache.r6gd.12xlarge , cache.r6gd.16xlarge

Memory optimized:

Current generation: R6g node types (available only for Redis engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward). cache.r6g.large , cache.r6g.xlarge , cache.r6g.2xlarge , cache.r6g.4xlarge , cache.r6g.8xlarge , cache.r6g.12xlarge , cache.r6g.16xlarge

Note

For region availability, see Supported Node Types

R5 node types: cache.r5.large , cache.r5.xlarge , cache.r5.2xlarge , cache.r5.4xlarge , cache.r5.12xlarge , cache.r5.24xlarge R4 node types: cache.r4.large , cache.r4.xlarge , cache.r4.2xlarge , cache.r4.4xlarge , cache.r4.8xlarge , cache.r4.16xlarge

Previous generation: (not recommended) M2 node types: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge R3 node types: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge

Additional node type info

All current generation instance types are created in Amazon VPC by default.

Redis append-only files (AOF) are not supported for T1 or T2 instances.

Redis Multi-AZ with automatic failover is not supported on T1 instances.

Redis configuration variables appendonly and appendfsync are not supported on Redis version 2.8.22 and later.

--duration (string)

The duration filter value, specified in years or seconds. Use this parameter to show only reservations for this duration.

Valid Values: 1 | 3 | 31536000 | 94608000

--product-description (string)

The product description filter value. Use this parameter to show only those reservations matching the specified product description.

--offering-type (string)

The offering type filter value. Use this parameter to show only the available offerings matching the specified offering type.

Valid values: "Light Utilization"|"Medium Utilization"|"Heavy Utilization"|"All Upfront"|"Partial Upfront"| "No Upfront"

--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.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--page-size (integer)

The size of each page to get in the AWS service call. This does not affect the number of items returned in the command’s output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--max-items (integer)

The total number of items to return in the command’s output. If the total number of items available is more than the value specified, a NextToken is provided in the command’s output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--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.

See ‘aws help’ for descriptions of global parameters.

Examples¶

To describe reserved cache nodes

The following describe-reserved-cache-nodes example returns information about reserved cache nodes for this account, or about the specified reserved cache node.

aws elasticache describe-reserved-cache-nodes

Output:

{
    "ReservedCacheNodes": [
        {
            "ReservedCacheNodeId": "mynode",
            "ReservedCacheNodesOfferingId": "xxxxxxxxx-xxxxx-xxxxx-xxxx-xxxxxxxx71",
            "CacheNodeType": "cache.t3.small",
            "StartTime": "2019-12-06T02:50:44.003Z",
            "Duration": 31536000,
            "FixedPrice": 0.0,
            "UsagePrice": 0.0,
            "CacheNodeCount": 1,
            "ProductDescription": "redis",
            "OfferingType": "No Upfront",
            "State": "payment-pending",
            "RecurringCharges": [
                {
                    "RecurringChargeAmount": 0.023,
                    "RecurringChargeFrequency": "Hourly"
                }
            ],
            "ReservationARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxxxx52:reserved-instance:mynode"
        }
    ]
}

For more information, see Managing Costs with Reserved Nodes in the Elasticache User Guide.

Output¶

Marker -> (string)

Provides an identifier to allow retrieval of paginated results.

ReservedCacheNodes -> (list)

A list of reserved cache nodes. Each element in the list contains detailed information about one node.

(structure)

Represents the output of a PurchaseReservedCacheNodesOffering operation.

ReservedCacheNodeId -> (string)

The unique identifier for the reservation.

ReservedCacheNodesOfferingId -> (string)

The offering identifier.

CacheNodeType -> (string)

The cache node type for the reserved cache nodes.

The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.

General purpose:

Current generation: M6g node types: (available only for Redis engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward): cache.m6g.large , cache.m6g.xlarge , cache.m6g.2xlarge , cache.m6g.4xlarge , cache.m6g.8xlarge , cache.m6g.12xlarge , cache.m6g.16xlarge

Note

For region availability, see Supported Node Types

M5 node types: cache.m5.large , cache.m5.xlarge , cache.m5.2xlarge , cache.m5.4xlarge , cache.m5.12xlarge , cache.m5.24xlarge M4 node types: cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge T4g node types (available only for Redis engine version 6.0 onward and Memcached engine version 1.5.16 onward): cache.t4g.micro , cache.t4g.small , cache.t4g.medium T3 node types: cache.t3.micro , cache.t3.small , cache.t3.medium T2 node types: cache.t2.micro , cache.t2.small , cache.t2.medium

Previous generation: (not recommended) T1 node types: cache.t1.micro M1 node types: cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge M3 node types: cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge

Compute optimized:

Previous generation: (not recommended) C1 node types: cache.c1.xlarge

Memory optimized with data tiering:

Current generation: R6gd node types (available only for Redis engine version 6.2 onward). cache.r6gd.xlarge , cache.r6gd.2xlarge , cache.r6gd.4xlarge , cache.r6gd.8xlarge , cache.r6gd.12xlarge , cache.r6gd.16xlarge

Memory optimized:

Current generation: R6g node types (available only for Redis engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward). cache.r6g.large , cache.r6g.xlarge , cache.r6g.2xlarge , cache.r6g.4xlarge , cache.r6g.8xlarge , cache.r6g.12xlarge , cache.r6g.16xlarge

Note

For region availability, see Supported Node Types

R5 node types: cache.r5.large , cache.r5.xlarge , cache.r5.2xlarge , cache.r5.4xlarge , cache.r5.12xlarge , cache.r5.24xlarge R4 node types: cache.r4.large , cache.r4.xlarge , cache.r4.2xlarge , cache.r4.4xlarge , cache.r4.8xlarge , cache.r4.16xlarge

Previous generation: (not recommended) M2 node types: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge R3 node types: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge

Additional node type info

All current generation instance types are created in Amazon VPC by default.

Redis append-only files (AOF) are not supported for T1 or T2 instances.

Redis Multi-AZ with automatic failover is not supported on T1 instances.

Redis configuration variables appendonly and appendfsync are not supported on Redis version 2.8.22 and later.

StartTime -> (timestamp)

The time the reservation started.

Duration -> (integer)

The duration of the reservation in seconds.

FixedPrice -> (double)

The fixed price charged for this reserved cache node.

UsagePrice -> (double)

The hourly price charged for this reserved cache node.

CacheNodeCount -> (integer)

The number of cache nodes that have been reserved.

ProductDescription -> (string)

The description of the reserved cache node.

OfferingType -> (string)

The offering type of this reserved cache node.

State -> (string)

The state of the reserved cache node.

RecurringCharges -> (list)

The recurring price charged to run this reserved cache node.

(structure)

Contains the specific price and frequency of a recurring charges for a reserved cache node, or for a reserved cache node offering.

RecurringChargeAmount -> (double)

The monetary amount of the recurring charge.

RecurringChargeFrequency -> (string)

The frequency of the recurring charge.

ReservationARN -> (string)

The Amazon Resource Name (ARN) of the reserved cache node.

Example: arn:aws:elasticache:us-east-1:123456789012:reserved-instance:ri-2017-03-27-08-33-25-582

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