# ReplicaGlobalSecondaryIndexSettingsUpdate


Represents the settings of a global secondary index for a global table that will be modified.

## Contents


**Note**  
In the following list, the required parameters are described first.

 ** IndexName **   <a name="DDB-Type-ReplicaGlobalSecondaryIndexSettingsUpdate-IndexName"></a>
The name of the global secondary index. The name must be unique among all other indexes on this table.  
Type: String  
Length Constraints: Minimum length of 3. Maximum length of 255.  
Pattern: `[a-zA-Z0-9_.-]+`   
Required: Yes

 ** ProvisionedReadCapacityAutoScalingSettingsUpdate **   <a name="DDB-Type-ReplicaGlobalSecondaryIndexSettingsUpdate-ProvisionedReadCapacityAutoScalingSettingsUpdate"></a>
Auto scaling settings for managing a global secondary index replica's read capacity units.  
Type: [AutoScalingSettingsUpdate](API_AutoScalingSettingsUpdate.md) object  
Required: No

 ** ProvisionedReadCapacityUnits **   <a name="DDB-Type-ReplicaGlobalSecondaryIndexSettingsUpdate-ProvisionedReadCapacityUnits"></a>
The maximum number of strongly consistent reads consumed per second before DynamoDB returns a `ThrottlingException`.  
Type: Long  
Valid Range: Minimum value of 1.  
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/dynamodb-2012-08-10/ReplicaGlobalSecondaryIndexSettingsUpdate) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/dynamodb-2012-08-10/ReplicaGlobalSecondaryIndexSettingsUpdate) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/ReplicaGlobalSecondaryIndexSettingsUpdate)