[ aws . docdb ]

modify-db-cluster-parameter-group

Description

Modifies the parameters of a 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.

Note

Changes to dynamic parameters are applied immediately. Changes to static parameters require a reboot or maintenance window before the change can take effect.

Warning

After you create a cluster parameter group, you should wait at least 5 minutes before creating your first cluster that uses that cluster parameter group as the default parameter group. This allows Amazon DocumentDB to fully complete the create action before the parameter group is used as the default for a new cluster. This step is especially important for parameters that are critical when creating the default database for a cluster, such as the character set for the default database defined by the character_set_database parameter.

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 cluster parameter group to modify.

--parameters (list)

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

(structure)

Detailed information about an individual parameter.

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.

Shorthand Syntax:

ParameterName=string,ParameterValue=string,Description=string,Source=string,ApplyType=string,DataType=string,AllowedValues=string,IsModifiable=boolean,MinimumEngineVersion=string,ApplyMethod=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"
  }
  ...
]

--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 an Amazon DocumentDB DB cluster parameter group

The following modify-db-cluster-parameter-group example modifies the Amazon DocumentDB cluster parameter group custom3-6-param-grp by setting the two parameters audit_logs and ttl_monitor to enabled. The changes are applied at the next reboot.

aws docdb modify-db-cluster-parameter-group \
    --db-cluster-parameter-group-name custom3-6-param-grp \
    --parameters ParameterName=audit_logs,ParameterValue=enabled,ApplyMethod=pending-reboot \
                 ParameterName=ttl_monitor,ParameterValue=enabled,ApplyMethod=pending-reboot

Output:

{
    "DBClusterParameterGroupName": "custom3-6-param-grp"
}

For more information, see Modifying an Amazon DocumentDB Cluster Parameter Group in the Amazon DocumentDB Developer Guide.

Output

DBClusterParameterGroupName -> (string)

The name of a cluster parameter group.

Constraints:

• Must be from 1 to 255 letters or numbers.

• The first character must be a letter.

• Cannot end with a hyphen or contain two consecutive hyphens.

Note

This value is stored as a lowercase string.