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::EC2::FlowLog DestinationOptions

Describes the destination options for a flow log.
## Syntax

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

```
{
 "[FileFormat](#cfn-ec2-flowlog-destinationoptions-fileformat)" : {{String}},
 "[HiveCompatiblePartitions](#cfn-ec2-flowlog-destinationoptions-hivecompatiblepartitions)" : {{Boolean}},
 "[PerHourPartition](#cfn-ec2-flowlog-destinationoptions-perhourpartition)" : {{Boolean}}
}
```
### YAML

```
 [FileFormat](#cfn-ec2-flowlog-destinationoptions-fileformat): {{String}}
 [HiveCompatiblePartitions](#cfn-ec2-flowlog-destinationoptions-hivecompatiblepartitions): {{Boolean}}
 [PerHourPartition](#cfn-ec2-flowlog-destinationoptions-perhourpartition): {{Boolean}}
```
## Properties

`FileFormat` 
The format for the flow log. The default is `plain-text`. 
*Required*: Yes 
*Type*: String 
*Allowed values*: `plain-text | parquet` 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
`HiveCompatiblePartitions` 
Indicates whether to use Hive-compatible prefixes for flow logs stored in Amazon S3. The default is `false`. 
*Required*: Yes 
*Type*: Boolean 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
`PerHourPartition` 
Indicates whether to partition the flow log per hour. This reduces the cost and response time for queries. The default is `false`. 
*Required*: Yes 
*Type*: Boolean 
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)</div><div class="naked_ctrl">
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