[ aws . rds ]

modify-db-cluster-parameter-group

Description

Modifies the parameters of a DB cluster parameter group. To modify more than one parameter, submit a list of the following: ParameterName , ParameterValue , and ApplyMethod . A maximum of 20 parameters can be modified in a single request.

Warning

After you create a DB cluster parameter group, you should wait at least 5 minutes before creating your first DB cluster that uses that DB cluster parameter group as the default parameter group. This allows Amazon RDS to fully complete the create action before the parameter group is used as the default for a new DB cluster. This is especially important for parameters that are critical when creating the default database for a DB cluster, such as the character set for the default database defined by the character_set_database parameter. You can use the Parameter Groups option of the Amazon RDS console or the DescribeDBClusterParameters action to verify that your DB cluster parameter group has been created or modified.

If the modified DB cluster parameter group is used by an Aurora Serverless cluster, Aurora applies the update immediately. The cluster restart might interrupt your workload. In that case, your application must reopen any connections and retry any transactions that were active when the parameter changes took effect.

For more information on Amazon Aurora DB clusters, see What is Amazon Aurora? in the Amazon Aurora User Guide.

For more information on Multi-AZ DB clusters, see Multi-AZ deployments with two readable standby DB instances in the Amazon RDS User Guide.

Note

The Multi-AZ DB clusters feature is in preview and is subject to change.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

Synopsis

  modify-db-cluster-parameter-group
--db-cluster-parameter-group-name <value>
--parameters <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options

--db-cluster-parameter-group-name (string)

The name of the DB cluster parameter group to modify.

--parameters (list)

A list of parameters in the DB cluster parameter group to modify.

Valid Values (for the application method): immediate | pending-reboot

Note

You can use the immediate value with dynamic parameters only. You can use the pending-reboot value for both dynamic and static parameters.

When the application method is immediate , changes to dynamic parameters are applied immediately to the DB clusters associated with the parameter group. When the application method is pending-reboot , changes to dynamic and static parameters are applied after a reboot without failover to the DB clusters associated with the parameter group.

(structure)

This data type is used as a request parameter in the ModifyDBParameterGroup and ResetDBParameterGroup actions.

This data type is used as a response element in the DescribeEngineDefaultParameters and DescribeDBParameters actions.

ParameterName -> (string)

Specifies the name of the parameter.

ParameterValue -> (string)

Specifies the value of the parameter.

Description -> (string)

Provides a description of the parameter.

Source -> (string)

Indicates the source of the parameter value.

ApplyType -> (string)

Specifies the engine specific parameters type.

DataType -> (string)

Specifies the valid data type for the parameter.

AllowedValues -> (string)

Specifies the valid range of values for the parameter.

IsModifiable -> (boolean)

Indicates whether (true ) or not (false ) 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.

ApplyMethod -> (string)

Indicates when to apply parameter updates.

SupportedEngineModes -> (list)

The valid DB engine modes.

(string)

Shorthand Syntax:

ParameterName=string,ParameterValue=string,Description=string,Source=string,ApplyType=string,DataType=string,AllowedValues=string,IsModifiable=boolean,MinimumEngineVersion=string,ApplyMethod=string,SupportedEngineModes=string,string ...

JSON Syntax:

[
  {
    "ParameterName": "string",
    "ParameterValue": "string",
    "Description": "string",
    "Source": "string",
    "ApplyType": "string",
    "DataType": "string",
    "AllowedValues": "string",
    "IsModifiable": true|false,
    "MinimumEngineVersion": "string",
    "ApplyMethod": "immediate"|"pending-reboot",
    "SupportedEngineModes": ["string", ...]
  }
  ...
]

--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.

--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 modify parameters in a DB cluster parameter group

The following modify-db-cluster-parameter-group example modifies the values of parameters in a DB cluster parameter group.

aws rds modify-db-cluster-parameter-group \
    --db-cluster-parameter-group-name mydbclusterpg \
    --parameters "ParameterName=server_audit_logging,ParameterValue=1,ApplyMethod=immediate" \
                 "ParameterName=server_audit_logs_upload,ParameterValue=1,ApplyMethod=immediate"

Output:

{
    "DBClusterParameterGroupName": "mydbclusterpg"
}

For more information, see Working with DB parameter groups and DB cluster parameter groups in the Amazon Aurora User Guide.

Output

DBClusterParameterGroupName -> (string)

The name of the DB cluster parameter group.

Constraints:

• Must be 1 to 255 letters or numbers.

• First character must be a letter

• Can’t end with a hyphen or contain two consecutive hyphens

Note

This value is stored as a lowercase string.