# CheckpointConfiguration
<a name="API_CheckpointConfiguration"></a>

Describes an application's checkpointing configuration. Checkpointing is the process of persisting application state for fault tolerance. For more information, see [ Checkpoints for Fault Tolerance](https://nightlies.apache.org/flink/flink-docs-release-1.20/docs/dev/datastream/fault-tolerance/checkpointing/#enabling-and-configuring-checkpointing) in the [Apache Flink Documentation](https://nightlies.apache.org/flink/flink-docs-release-1.20/).

## Contents
<a name="API_CheckpointConfiguration_Contents"></a>

 ** ConfigurationType **   <a name="APIReference-Type-CheckpointConfiguration-ConfigurationType"></a>
Describes whether the application uses Managed Service for Apache Flink' default checkpointing behavior. You must set this property to `CUSTOM` in order to set the `CheckpointingEnabled`, `CheckpointInterval`, or `MinPauseBetweenCheckpoints` parameters.  
If this value is set to `DEFAULT`, the application will use the following values, even if they are set to other values using APIs or application code:  
+  **CheckpointingEnabled:** true
+  **CheckpointInterval:** 60000
+  **MinPauseBetweenCheckpoints:** 5000
Type: String  
Valid Values: `DEFAULT | CUSTOM`   
Required: Yes

 ** CheckpointingEnabled **   <a name="APIReference-Type-CheckpointConfiguration-CheckpointingEnabled"></a>
Describes whether checkpointing is enabled for a Managed Service for Apache Flink application.  
If `CheckpointConfiguration.ConfigurationType` is `DEFAULT`, the application will use a `CheckpointingEnabled` value of `true`, even if this value is set to another value using this API or in application code.
Type: Boolean  
Required: No

 ** CheckpointInterval **   <a name="APIReference-Type-CheckpointConfiguration-CheckpointInterval"></a>
Describes the interval in milliseconds between checkpoint operations.   
If `CheckpointConfiguration.ConfigurationType` is `DEFAULT`, the application will use a `CheckpointInterval` value of 60000, even if this value is set to another value using this API or in application code.
Type: Long  
Valid Range: Minimum value of 1.  
Required: No

 ** MinPauseBetweenCheckpoints **   <a name="APIReference-Type-CheckpointConfiguration-MinPauseBetweenCheckpoints"></a>
Describes the minimum time in milliseconds after a checkpoint operation completes that a new checkpoint operation can start. If a checkpoint operation takes longer than the `CheckpointInterval`, the application otherwise performs continual checkpoint operations. For more information, see [ Tuning Checkpointing](https://nightlies.apache.org/flink/flink-docs-release-1.20/docs/ops/state/large_state_tuning/#tuning-checkpointing) in the [Apache Flink Documentation](https://nightlies.apache.org/flink/flink-docs-release-1.20/).  
If `CheckpointConfiguration.ConfigurationType` is `DEFAULT`, the application will use a `MinPauseBetweenCheckpoints` value of 5000, even if this value is set using this API or in application code.
Type: Long  
Valid Range: Minimum value of 0.  
Required: No

## See Also
<a name="API_CheckpointConfiguration_SeeAlso"></a>

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/kinesisanalyticsv2-2018-05-23/CheckpointConfiguration) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisanalyticsv2-2018-05-23/CheckpointConfiguration) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisanalyticsv2-2018-05-23/CheckpointConfiguration)