# ListRecommendations
<a name="API_ListRecommendations"></a>

List the Amazon Redshift Advisor recommendations for one or multiple Amazon Redshift clusters in an Amazon Web Services account.

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

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

 ** ClusterIdentifier **   
The unique identifier of the Amazon Redshift cluster for which the list of Advisor recommendations is returned. If the neither the cluster identifier and the cluster namespace ARN parameters are specified, then recommendations for all clusters in the account are returned.  
Type: String  
Length Constraints: Maximum length of 2147483647.  
Required: No

 ** Marker **   
A value that indicates the starting point for the next set of response records in a subsequent request. If a value is returned in a response, you can retrieve the next set of records by providing this returned marker value in the Marker parameter and retrying the command. If the Marker field is empty, all response records have been retrieved for the request.   
Type: String  
Length Constraints: Maximum length of 2147483647.  
Required: No

 ** MaxRecords **   
The maximum number of response records to return in each call. If the number of remaining response records exceeds the specified MaxRecords value, a value is returned in a marker field of the response. You can retrieve the next set of records by retrying the command with the returned marker value.  
Type: Integer  
Required: No

 ** NamespaceArn **   
The Amazon Redshift cluster namespace Amazon Resource Name (ARN) for which the list of Advisor recommendations is returned. If the neither the cluster identifier and the cluster namespace ARN parameters are specified, then recommendations for all clusters in the account are returned.  
Type: String  
Length Constraints: Maximum length of 2147483647.  
Required: No

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

The following elements are returned by the service.

 ** Marker **   
A value that indicates the starting point for the next set of response records in a subsequent request. If a value is returned in a response, you can retrieve the next set of records by providing this returned marker value in the Marker parameter and retrying the command. If the Marker field is empty, all response records have been retrieved for the request.   
Type: String  
Length Constraints: Maximum length of 2147483647.

 **Recommendations.Recommendation.N**   
The Advisor recommendations for action on the Amazon Redshift cluster.  
Type: Array of [Recommendation](API_Recommendation.md) objects

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

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

 ** ClusterNotFound **   
The `ClusterIdentifier` parameter does not refer to an existing cluster.   
HTTP Status Code: 404

 ** UnsupportedOperation **   
The requested operation isn't supported.  
HTTP Status Code: 400

## See Also
<a name="API_ListRecommendations_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/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/redshift-2012-12-01/ListRecommendations) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/redshift-2012-12-01/ListRecommendations)