AWS::Neptune::DBParameterGroup - AWS CloudFormation


AWS::Neptune::DBParameterGroup creates a new DB parameter group. This type can be declared in a template and referenced in the DBParameterGroupName parameter of AWS::Neptune::DBInstance.


Applying a parameter group to a DB instance might require the instance to reboot, resulting in a database outage for the duration of the reboot.

A DB parameter group is initially created with the default parameters for the database engine used by the DB instance. To provide custom values for any of the parameters, you must modify the group after creating it using ModifyDBParameterGroup. Once you've created a DB parameter group, you need to associate it with your DB instance using ModifyDBInstance. When you associate a new DB parameter group with a running DB instance, you need to reboot the DB instance without failover for the new DB parameter group and associated settings to take effect.


After you create 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 Neptune to fully complete the create 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 Neptune console or the DescribeDBParameters command to verify that your DB parameter group has been created or modified.


To declare this entity in your AWS CloudFormation template, use the following syntax:


{ "Type" : "AWS::Neptune::DBParameterGroup", "Properties" : { "Description" : String, "Family" : String, "Name" : String, "Parameters" : Json, "Tags" : [ Tag, ... ] } }


Type: AWS::Neptune::DBParameterGroup Properties: Description: String Family: String Name: String Parameters: Json Tags: - Tag



Provides the customer-specified description for this DB parameter group.

Required: Yes

Type: String

Update requires: Replacement


Must be neptune1.

Required: Yes

Type: String

Update requires: Replacement


Provides the name of the DB parameter group.

Required: No

Type: String

Update requires: Replacement


The parameters to set for this DB parameter group.

The parameters are expressed as a JSON object consisting of key-value pairs.

Changes to dynamic parameters are applied immediately. During an update, if you have static parameters (whether they were changed or not), it triggers AWS CloudFormation to reboot the associated DB instance without failover.

Required: Yes

Type: Json

Update requires: No interruption


The tags that you want to attach to this parameter group.

Required: No

Type: List of Tag

Update requires: No interruption

Return values


When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the resource name.

For more information about using the Ref function, see Ref.