[ aws . redshift ]

describe-cluster-parameters

Description

Returns a detailed list of parameters contained within the specified Amazon Redshift parameter group. For each parameter the response includes information such as parameter name, description, data type, value, whether the parameter value is modifiable, and so on.

You can specify source filter to retrieve parameters of only specific type. For example, to retrieve parameters that were modified by a user action such as from ModifyClusterParameterGroup , you can specify source equal to user .

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

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

describe-cluster-parameters is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: Parameters

Synopsis

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

Options

--parameter-group-name (string)

The name of a cluster parameter group for which to return details.

--source (string)

The parameter types to return. Specify user to show parameters that are different form the default. Similarly, specify engine-default to show parameters that are the same as the default parameter group.

Default: All parameter types returned.

Valid Values: user | engine-default

--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

Retrieve the Parameters for a Specified Cluster Parameter Group

This example retrieves the parameters for the named parameter group. By default, the output is in JSON format.

Command:

aws redshift describe-cluster-parameters --parameter-group-name myclusterparametergroup

Result:

{
   "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...)
   ]
}

You can also obtain the same information in text format using the --output text option.

Command:

aws redshift describe-cluster-parameters --parameter-group-name myclusterparametergroup --output text

Result:

RESPONSEMETADATA    cdac40aa-64cc-11e2-9e70-918437dd236d
Sets the display format for date and time values.   string  True    engine-default  ISO, MDY        datestyle
Sets the number of digits displayed for floating-point values       integer True    -15-2   engine-default  0       extra_float_digits
This parameter applies a user-defined label to a group of queries that are run during the same session..    string  True    engine-default  default query_group
require ssl for all databaseconnections     boolean True    true,false      engine-default  false   require_ssl
Sets the schema search order for names that are not schema-qualified.       string  True    engine-default  $user, public   search_path
Aborts any statement that takes over the specified number of milliseconds.  integer True    engine-default  0       statement_timeout
wlm json configuration      string  True    engine-default  \[{"query_concurrency":5}]      wlm_json_configuration

Output

Parameters -> (list)

A list of Parameter instances. Each instance lists the parameters of one cluster parameter group.

(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.

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.