# ShadowModeConfig
<a name="API_ShadowModeConfig"></a>

 The configuration of `ShadowMode` inference experiment type, which specifies a production variant to take all the inference requests, and a shadow variant to which Amazon SageMaker replicates a percentage of the inference requests. For the shadow variant it also specifies the percentage of requests that Amazon SageMaker replicates. 

## Contents
<a name="API_ShadowModeConfig_Contents"></a>

 ** ShadowModelVariants **   <a name="sagemaker-Type-ShadowModeConfig-ShadowModelVariants"></a>
List of shadow variant configurations.  
Type: Array of [ShadowModelVariantConfig](API_ShadowModelVariantConfig.md) objects  
Array Members: Fixed number of 1 item.  
Required: Yes

 ** SourceModelVariantName **   <a name="sagemaker-Type-ShadowModeConfig-SourceModelVariantName"></a>
 The name of the production variant, which takes all the inference requests.   
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 63.  
Pattern: `[a-zA-Z0-9]([\-a-zA-Z0-9]*[a-zA-Z0-9])?`   
Required: Yes

## See Also
<a name="API_ShadowModeConfig_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/sagemaker-2017-07-24/ShadowModeConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/ShadowModeConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/ShadowModeConfig)