# UpdateTaskExecution
<a name="API_UpdateTaskExecution"></a>

Updates the configuration of a running Amazon DataSync task execution.

**Note**  
Currently, the only `Option` that you can modify with `UpdateTaskExecution` is ` [BytesPerSecond](https://docs.amazonaws.cn/datasync/latest/userguide/API_Options.html#DataSync-Type-Options-BytesPerSecond) `, which throttles bandwidth for a running or queued task execution.

## Request Syntax
<a name="API_UpdateTaskExecution_RequestSyntax"></a>

```
{
   "Options": { 
      "Atime": "{{string}}",
      "BytesPerSecond": {{number}},
      "Gid": "{{string}}",
      "LogLevel": "{{string}}",
      "Mtime": "{{string}}",
      "ObjectTags": "{{string}}",
      "OverwriteMode": "{{string}}",
      "PosixPermissions": "{{string}}",
      "PreserveDeletedFiles": "{{string}}",
      "PreserveDevices": "{{string}}",
      "SecurityDescriptorCopyFlags": "{{string}}",
      "TaskQueueing": "{{string}}",
      "TransferMode": "{{string}}",
      "Uid": "{{string}}",
      "VerifyMode": "{{string}}"
   },
   "TaskExecutionArn": "{{string}}"
}
```

## Request Parameters
<a name="API_UpdateTaskExecution_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [Options](#API_UpdateTaskExecution_RequestSyntax) **   <a name="DataSync-UpdateTaskExecution-request-Options"></a>
Indicates how your transfer task is configured. These options include how DataSync handles files, objects, and their associated metadata during your transfer. You also can specify how to verify data integrity, set bandwidth limits for your task, among other options.  
Each option has a default value. Unless you need to, you don't have to configure any option before calling [StartTaskExecution](https://docs.amazonaws.cn/datasync/latest/userguide/API_StartTaskExecution.html).  
You also can override your task options for each task execution. For example, you might want to adjust the `LogLevel` for an individual execution.  
Type: [Options](API_Options.md) object  
Required: Yes

 ** [TaskExecutionArn](#API_UpdateTaskExecution_RequestSyntax) **   <a name="DataSync-UpdateTaskExecution-request-TaskExecutionArn"></a>
Specifies the Amazon Resource Name (ARN) of the task execution that you're updating.  
Type: String  
Length Constraints: Maximum length of 128.  
Pattern: `^arn:(aws|aws-cn|aws-us-gov|aws-eusc|aws-iso|aws-iso-b):datasync:[a-z\-0-9]+:[0-9]{12}:task/task-[0-9a-f]{17}/execution/exec-[0-9a-f]{17}$`   
Required: Yes

## Response Elements
<a name="API_UpdateTaskExecution_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

## Errors
<a name="API_UpdateTaskExecution_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** InternalException **   
This exception is thrown when an error occurs in the Amazon DataSync service.  
HTTP Status Code: 500

 ** InvalidRequestException **   
This exception is thrown when the client submits a malformed request.  
HTTP Status Code: 400

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

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/datasync-2018-11-09/UpdateTaskExecution) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/datasync-2018-11-09/UpdateTaskExecution)