describe-default-cluster-parameters¶

Description¶

Returns a list of parameter settings for the specified parameter group family.

For more information about parameters and parameter groups, go to Amazon Redshift Parameter Groups in the Amazon Redshift Cluster Management Guide .

Synopsis¶

  describe-default-cluster-parameters
--parameter-group-family <value>
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]

Options¶

--parameter-group-family (string)

The name of the cluster parameter group family.

--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. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

Get a Description of Default Cluster Parameters¶

This example returns a description of the default cluster parameters for the redshift-1.0 family. By default, the output is in JSON format.

Command:

aws redshift describe-default-cluster-parameters --parameter-group-family redshift-1.0

Result:

{
   "DefaultClusterParameters": {
   "ParameterGroupFamily": "redshift-1.0",
   "Parameters": [
      {
         "Description": "Sets the display format for date and time values.",
         "DataType": "string",
         "IsModifiable": true,
         "Source": "engine-default",
         "ParameterValue": "ISO, MDY",
         "ParameterName": "datestyle"
      },
      {
         "Description": "Sets the number of digits displayed for floating-point values",
         "DataType": "integer",
         "IsModifiable": true,
         "AllowedValues": "-15-2",
         "Source": "engine-default",
         "ParameterValue": "0",
         "ParameterName": "extra_float_digits"
      },
      (...remaining output omitted...)
      ]
   }
}

Tip

To see a list of valid parameter group families, use the describe-cluster-parameter-groups command.

Output¶

DefaultClusterParameters -> (structure)

Describes the default cluster parameters for a parameter group family.

ParameterGroupFamily -> (string)

The name of the cluster parameter group family to which the engine default parameters apply.

Marker -> (string)

A value that indicates the starting point for the next set of response records in a subsequent request. If a value is returned in a response, you can retrieve the next set of records by providing this returned marker value in the Marker parameter and retrying the command. If the Marker field is empty, all response records have been retrieved for the request.

Parameters -> (list)

The list of cluster default parameters.

(structure)

Describes a parameter in a cluster parameter group.

ParameterName -> (string)

The name of the parameter.

ParameterValue -> (string)

The value of the parameter. If ParameterName is wlm_json_configuration , then the maximum size of ParameterValue is 8000 characters.

Description -> (string)

A description of the parameter.

Source -> (string)

The source of the parameter value, such as “engine-default” or “user”.

DataType -> (string)

The data type of the parameter.

AllowedValues -> (string)

The valid range of values for the parameter.

ApplyType -> (string)

Specifies how to apply the WLM configuration parameter. Some properties can be applied dynamically, while other properties require that any associated clusters be rebooted for the configuration changes to be applied. For more information about parameters and parameter groups, go to Amazon Redshift Parameter Groups in the Amazon Redshift Cluster Management Guide .

IsModifiable -> (boolean)

If true , the parameter can be modified. Some parameters have security or operational implications that prevent them from being changed.

MinimumEngineVersion -> (string)

The earliest engine version to which the parameter can apply.

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