# InstanceGroupStateChangeReason
<a name="API_InstanceGroupStateChangeReason"></a>

The status change reason details for the instance group.

## Contents
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 ** Code **   <a name="EMR-Type-InstanceGroupStateChangeReason-Code"></a>
The programmable code for the state change reason.  
Type: String  
Valid Values: `INTERNAL_ERROR | VALIDATION_ERROR | INSTANCE_FAILURE | CLUSTER_TERMINATED`   
Required: No

 ** Message **   <a name="EMR-Type-InstanceGroupStateChangeReason-Message"></a>
The status change reason description.  
Type: String  
Required: No

## See Also
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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/elasticmapreduce-2009-03-31/InstanceGroupStateChangeReason) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/elasticmapreduce-2009-03-31/InstanceGroupStateChangeReason) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/elasticmapreduce-2009-03-31/InstanceGroupStateChangeReason)