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Amazon Relational Database Service
API Reference (API Version 2014-10-31)

ModifyDBParameterGroup

Modifies the parameters of a DB 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 without failover to the DB instance associated with the parameter group before the change can take effect.

Important

After you modify a DB parameter group, you should wait at least 5 minutes before creating your first DB instance that uses that DB parameter group as the default parameter group. This allows Amazon RDS to fully complete the modify action before the parameter group is used as the default for a new DB instance. This is especially important for parameters that are critical when creating the default database for a DB instance, 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 DescribeDBParameters command to verify that your DB parameter group has been created or modified.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

DBParameterGroupName

The name of the DB parameter group.

Constraints:

  • Must be the name of an existing DB parameter group

  • Must be 1 to 255 alphanumeric characters

  • First character must be a letter

  • Cannot end with a hyphen or contain two consecutive hyphens

Type: String

Required: Yes

Parameters.Parameter.N

An array of parameter names, values, and the apply method for the parameter update. At least one parameter name, value, and apply method must be supplied; subsequent arguments are optional. A maximum of 20 parameters can be modified in a single request.

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, and changes are applied when you reboot the DB instance without failover.

Type: Array of Parameter objects

Required: Yes

Response Elements

The following element is returned by the service.

DBParameterGroupName

Provides the name of the DB parameter group.

Type: String

Errors

For information about the errors that are common to all actions, see Common Errors.

DBParameterGroupNotFound

DBParameterGroupName does not refer to an existing DB parameter group.

HTTP Status Code: 404

InvalidDBParameterGroupState

The DB parameter group is in use or is in an invalid state. If you are attempting to delete the parameter group, you cannot delete it when the parameter group is in this state.

HTTP Status Code: 400

Example

Sample Request

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https://rds.us-east-1.amazonaws.com/ ?Action=ModifyDBParameterGroup &DBParameterGroupName=mydbparametergroup01 &Parameters.member.1.ApplyMethod=immediate &Parameters.member.1.ParameterName=binlog_cache_size &Parameters.member.1.ParameterValue=65536 &SignatureMethod=HmacSHA256 &SignatureVersion=4 &Version=2014-09-01 &X-Amz-Algorithm=AWS4-HMAC-SHA256 &X-Amz-Credential=AKIADQKE4SARGYLE/20140425/us-east-1/rds/aws4_request &X-Amz-Date=20140425T193811Z &X-Amz-SignedHeaders=content-type;host;user-agent;x-amz-content-sha256;x-amz-date &X-Amz-Signature=afd9acfee876360dd294189465aca26502343d405292dc6e43b1961ad4d1d7e2

Sample Response

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<ModifyDBParameterGroupResponse xmlns="http://rds.amazonaws.com/doc/2014-09-01/"> <ModifyDBParameterGroupResult> <DBParameterGroupName>mydbparametergroup01</DBParameterGroupName> </ModifyDBParameterGroupResult> <ResponseMetadata> <RequestId>12d7435e-bba0-11d3-fe11-33d33a9bb7e3</RequestId> </ResponseMetadata> </ModifyDBParameterGroupResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: