# InstanceFleetResizingSpecifications


The resize specification for On-Demand and Spot Instances in the fleet.

## Contents


 ** OnDemandResizeSpecification **   <a name="EMR-Type-InstanceFleetResizingSpecifications-OnDemandResizeSpecification"></a>
The resize specification for On-Demand Instances in the instance fleet, which contains the allocation strategy, capacity reservation options, and the resize timeout period.   
Type: [OnDemandResizingSpecification](API_OnDemandResizingSpecification.md) object  
Required: No

 ** SpotResizeSpecification **   <a name="EMR-Type-InstanceFleetResizingSpecifications-SpotResizeSpecification"></a>
The resize specification for Spot Instances in the instance fleet, which contains the allocation strategy and the resize timeout period.   
Type: [SpotResizingSpecification](API_SpotResizingSpecification.md) object  
Required: No

## See Also


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