# UpdatePipeline
<a name="API_UpdatePipeline"></a>

Updates a pipeline.

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

```
{
   "ParallelismConfiguration": { 
      "MaxParallelExecutionSteps": number
   },
   "PipelineDefinition": "string",
   "PipelineDefinitionS3Location": { 
      "Bucket": "string",
      "ObjectKey": "string",
      "VersionId": "string"
   },
   "PipelineDescription": "string",
   "PipelineDisplayName": "string",
   "PipelineName": "string",
   "RoleArn": "string"
}
```

## Request Parameters
<a name="API_UpdatePipeline_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.

 ** [ParallelismConfiguration](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-ParallelismConfiguration"></a>
If specified, it applies to all executions of this pipeline by default.  
Type: [ParallelismConfiguration](API_ParallelismConfiguration.md) object  
Required: No

 ** [PipelineDefinition](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-PipelineDefinition"></a>
The JSON pipeline definition.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1048576.  
Pattern: `.*(?:[ \r\n\t].*)*`   
Required: No

 ** [PipelineDefinitionS3Location](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-PipelineDefinitionS3Location"></a>
The location of the pipeline definition stored in Amazon S3. If specified, SageMaker will retrieve the pipeline definition from this location.  
Type: [PipelineDefinitionS3Location](API_PipelineDefinitionS3Location.md) object  
Required: No

 ** [PipelineDescription](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-PipelineDescription"></a>
The description of the pipeline.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 3072.  
Pattern: `.*`   
Required: No

 ** [PipelineDisplayName](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-PipelineDisplayName"></a>
The display name of the pipeline.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[a-zA-Z0-9](-*[a-zA-Z0-9]){0,255}`   
Required: No

 ** [PipelineName](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-PipelineName"></a>
The name of the pipeline to update.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[a-zA-Z0-9](-*[a-zA-Z0-9]){0,255}`   
Required: Yes

 ** [RoleArn](#API_UpdatePipeline_RequestSyntax) **   <a name="sagemaker-UpdatePipeline-request-RoleArn"></a>
The Amazon Resource Name (ARN) that the pipeline uses to execute.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 2048.  
Pattern: `arn:aws[a-z\-]*:iam::\d{12}:role/?[a-zA-Z_0-9+=,.@\-_/]+`   
Required: No

## Response Syntax
<a name="API_UpdatePipeline_ResponseSyntax"></a>

```
{
   "PipelineArn": "string",
   "PipelineVersionId": number
}
```

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

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

The following data is returned in JSON format by the service.

 ** [PipelineArn](#API_UpdatePipeline_ResponseSyntax) **   <a name="sagemaker-UpdatePipeline-response-PipelineArn"></a>
The Amazon Resource Name (ARN) of the updated pipeline.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 2048.  
Pattern: `arn:aws[a-z\-]*:sagemaker:[a-z0-9\-]*:([0-9]{12}|aws):pipeline/.*` 

 ** [PipelineVersionId](#API_UpdatePipeline_ResponseSyntax) **   <a name="sagemaker-UpdatePipeline-response-PipelineVersionId"></a>
The ID of the pipeline version.  
Type: Long  
Valid Range: Minimum value of 1.

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

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

 ** ConflictException **   
There was a conflict when you attempted to modify a SageMaker entity such as an `Experiment` or `Artifact`.  
HTTP Status Code: 400

 ** ResourceNotFound **   
Resource being access is not found.  
HTTP Status Code: 400

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

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/sagemaker-2017-07-24/UpdatePipeline) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/UpdatePipeline)