This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::EMRServerless::Application WorkerConfiguration
<a name="aws-properties-emrserverless-application-workerconfiguration"></a>

The configuration of a worker. For more information, see [ Supported worker configurations](https://docs.aws.amazon.com/emr/latest/EMR-Serverless-UserGuide/app-behavior.html#worker-configs).

## Syntax
<a name="aws-properties-emrserverless-application-workerconfiguration-syntax"></a>

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

### JSON
<a name="aws-properties-emrserverless-application-workerconfiguration-syntax.json"></a>

```
{
  "[Cpu](#cfn-emrserverless-application-workerconfiguration-cpu)" : String,
  "[Disk](#cfn-emrserverless-application-workerconfiguration-disk)" : String,
  "[DiskType](#cfn-emrserverless-application-workerconfiguration-disktype)" : String,
  "[Memory](#cfn-emrserverless-application-workerconfiguration-memory)" : String
}
```

### YAML
<a name="aws-properties-emrserverless-application-workerconfiguration-syntax.yaml"></a>

```
  [Cpu](#cfn-emrserverless-application-workerconfiguration-cpu): String
  [Disk](#cfn-emrserverless-application-workerconfiguration-disk): String
  [DiskType](#cfn-emrserverless-application-workerconfiguration-disktype): String
  [Memory](#cfn-emrserverless-application-workerconfiguration-memory): String
```

## Properties
<a name="aws-properties-emrserverless-application-workerconfiguration-properties"></a>

`Cpu`  <a name="cfn-emrserverless-application-workerconfiguration-cpu"></a>
The CPU requirements of the worker configuration. Each worker can have 1, 2, 4, 8, or 16 vCPUs.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[1-9][0-9]*(\s)?(vCPU|vcpu|VCPU)?$`  
*Minimum*: `1`  
*Maximum*: `15`  
*Update requires*: [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)

`Disk`  <a name="cfn-emrserverless-application-workerconfiguration-disk"></a>
The disk requirements of the worker configuration.  
*Required*: No  
*Type*: String  
*Pattern*: `^[1-9][0-9]*(\s)?(GB|gb|gB|Gb)$`  
*Minimum*: `1`  
*Maximum*: `15`  
*Update requires*: [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)

`DiskType`  <a name="cfn-emrserverless-application-workerconfiguration-disktype"></a>
The disk type for every worker instance of the work type. Shuffle optimized disks have higher performance characteristics and are better for shuffle heavy workloads. Default is `STANDARD`.  
*Required*: No  
*Type*: String  
*Pattern*: `^(SHUFFLE_OPTIMIZED|[Ss]huffle_[Oo]ptimized|STANDARD|[Ss]tandard)$`  
*Update requires*: [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)

`Memory`  <a name="cfn-emrserverless-application-workerconfiguration-memory"></a>
The memory requirements of the worker configuration.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[1-9][0-9]*(\s)?(GB|gb|gB|Gb)?$`  
*Minimum*: `1`  
*Maximum*: `15`  
*Update requires*: [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)