# AWS::RDS::DBCluster ScalingConfiguration

The ScalingConfiguration property type specifies the scaling configuration of an Aurora Serverless DB cluster.

## Syntax

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

### JSON

<pre>
{
    "<a href="#autopause" title="AutoPause">AutoPause</a>" : <i>Boolean</i>,
    "<a href="#maxcapacity" title="MaxCapacity">MaxCapacity</a>" : <i>Integer</i>,
    "<a href="#mincapacity" title="MinCapacity">MinCapacity</a>" : <i>Integer</i>,
    "<a href="#secondsbeforetimeout" title="SecondsBeforeTimeout">SecondsBeforeTimeout</a>" : <i>Integer</i>,
    "<a href="#secondsuntilautopause" title="SecondsUntilAutoPause">SecondsUntilAutoPause</a>" : <i>Integer</i>,
    "<a href="#timeoutaction" title="TimeoutAction">TimeoutAction</a>" : <i>String</i>
}
</pre>

### YAML

<pre>
<a href="#autopause" title="AutoPause">AutoPause</a>: <i>Boolean</i>
<a href="#maxcapacity" title="MaxCapacity">MaxCapacity</a>: <i>Integer</i>
<a href="#mincapacity" title="MinCapacity">MinCapacity</a>: <i>Integer</i>
<a href="#secondsbeforetimeout" title="SecondsBeforeTimeout">SecondsBeforeTimeout</a>: <i>Integer</i>
<a href="#secondsuntilautopause" title="SecondsUntilAutoPause">SecondsUntilAutoPause</a>: <i>Integer</i>
<a href="#timeoutaction" title="TimeoutAction">TimeoutAction</a>: <i>String</i>
</pre>

## Properties

#### AutoPause

A value that indicates whether to allow or disallow automatic pause for an Aurora DB cluster in serverless DB engine mode. A DB cluster can be paused only when it's idle (it has no connections).

_Required_: No

_Type_: Boolean

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

#### MaxCapacity

The maximum capacity for an Aurora DB cluster in serverless DB engine mode.
For Aurora MySQL, valid capacity values are 1, 2, 4, 8, 16, 32, 64, 128, and 256.
For Aurora PostgreSQL, valid capacity values are 2, 4, 8, 16, 32, 64, 192, and 384.
The maximum capacity must be greater than or equal to the minimum capacity.

_Required_: No

_Type_: Integer

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

#### MinCapacity

The minimum capacity for an Aurora DB cluster in serverless DB engine mode.
For Aurora MySQL, valid capacity values are 1, 2, 4, 8, 16, 32, 64, 128, and 256.
For Aurora PostgreSQL, valid capacity values are 2, 4, 8, 16, 32, 64, 192, and 384.
The minimum capacity must be less than or equal to the maximum capacity.

_Required_: No

_Type_: Integer

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

#### SecondsBeforeTimeout

The amount of time, in seconds, that Aurora Serverless v1 tries to find a scaling point to perform seamless scaling before enforcing the timeout action.
The default is 300.

_Required_: No

_Type_: Integer

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

#### SecondsUntilAutoPause

The time, in seconds, before an Aurora DB cluster in serverless mode is paused.

_Required_: No

_Type_: Integer

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

#### TimeoutAction

The action to take when the timeout is reached, either ForceApplyCapacityChange or RollbackCapacityChange.
ForceApplyCapacityChange sets the capacity to the specified value as soon as possible.
RollbackCapacityChange, the default, ignores the capacity change if a scaling point isn't found in the timeout period.

For more information, see Autoscaling for Aurora Serverless v1 in the Amazon Aurora User Guide.

_Required_: No

_Type_: String

_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)