AWS SDK Version 3 for .NET
API Reference

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Modifies a cluster subnet group to include the specified list of VPC subnets. The operation replaces the existing list of subnets with the new list of subnets.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to ModifyClusterSubnetGroupAsync.

Namespace: Amazon.Redshift
Assembly: AWSSDK.Redshift.dll
Version: 3.x.y.z


public abstract ModifyClusterSubnetGroupResponse ModifyClusterSubnetGroup(
         ModifyClusterSubnetGroupRequest request
Type: Amazon.Redshift.Model.ModifyClusterSubnetGroupRequest

Container for the necessary parameters to execute the ModifyClusterSubnetGroup service method.

Return Value
The response from the ModifyClusterSubnetGroup service method, as returned by Redshift.


ClusterSubnetGroupNotFoundException The cluster subnet group name does not refer to an existing cluster subnet group.
ClusterSubnetQuotaExceededException The request would result in user exceeding the allowed number of subnets in a cluster subnet groups. For information about increasing your quota, go to Limits in Amazon Redshift in the Amazon Redshift Cluster Management Guide.
DependentServiceRequestThrottlingException The request cannot be completed because a dependent service is throttling requests made by Amazon Redshift on your behalf. Wait and retry the request.
InvalidSubnetException The requested subnet is not valid, or not all of the subnets are in the same VPC.
SubnetAlreadyInUseException A specified subnet is already in use by another cluster.
UnauthorizedOperationException Your account is not authorized to perform the requested operation.


This example shows how to modify a cluster subnet group.

To modify a subnet group

var response = client.ModifyClusterParameterGroup(new ModifyClusterParameterGroupRequest 
    ParameterGroupName = "myclusterparametergroup",
    Parameters = new List {
        new Parameter {
            ApplyType = "dynamic",
            ParameterName = "wlm_json_configuration",
            ParameterValue = "[{\"query_group\":[\"report\"], \"query_group_wild_card\":1, \"query_concurrency\":4, \"max_execution_time\":20000, \"memory_percent_to_use\":25, \"rules\": [{\"rule_name\": \"rule_1\", \"predicate\": [{\"metric_name\": \"query_cpu_time\", \"operator\": \">\", \"value\": 1000000}, {\"metric_name\": \"query_blocks_read\", \"operator\": \">\", \"value\": 1000}], \"action\": \"log\"}] }, {\"user_group\":[\"admin\",\"dba\"], \"user_group_wild_card\":0, \"query_concurrency\":5, \"memory_percent_to_use\":40, \"rules\": [{\"rule_name\": \"rule_2\", \"predicate\": [{\"metric_name\": \"query_execution_time\", \"operator\": \">\", \"value\": 10000}, {\"metric_name\": \"scan_row_count\", \"operator\": \">\", \"value\": 1000000000}], \"action\": \"hop\"}] }, {\"query_concurrency\":5, \"memory_percent_to_use\":35 } ]"

string parameterGroupName = response.ParameterGroupName;
string parameterGroupStatus = response.ParameterGroupStatus;


Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also