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::KinesisFirehose::DeliveryStream AmazonOpenSearchServerlessBufferingHints
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Describes the buffering to perform before delivering data to the Serverless offering for Amazon OpenSearch Service destination.

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

### JSON
<a name="aws-properties-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-syntax.json"></a>

```
{
  "[IntervalInSeconds](#cfn-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-intervalinseconds)" : {{Integer}},
  "[SizeInMBs](#cfn-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-sizeinmbs)" : {{Integer}}
}
```

### YAML
<a name="aws-properties-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-syntax.yaml"></a>

```
  [IntervalInSeconds](#cfn-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-intervalinseconds): {{Integer}}
  [SizeInMBs](#cfn-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-sizeinmbs): {{Integer}}
```

## Properties
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`IntervalInSeconds`  <a name="cfn-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-intervalinseconds"></a>
Buffer incoming data for the specified period of time, in seconds, before delivering it to the destination. The default value is 300 (5 minutes).  
*Required*: No  
*Type*: Integer  
*Minimum*: `0`  
*Maximum*: `900`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SizeInMBs`  <a name="cfn-kinesisfirehose-deliverystream-amazonopensearchserverlessbufferinghints-sizeinmbs"></a>
Buffer incoming data to the specified size, in MBs, before delivering it to the destination. The default value is 5.   
We recommend setting this parameter to a value greater than the amount of data you typically ingest into the Firehose stream in 10 seconds. For example, if you typically ingest data at 1 MB/sec, the value should be 10 MB or higher.  
*Required*: No  
*Type*: Integer  
*Minimum*: `1`  
*Maximum*: `100`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)