AWS SDK Version 3 for .NET
API Reference

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Modifies the parameters of a parameter group.

For more information about parameters and parameter groups, go to Amazon Redshift Parameter Groups in the Amazon Redshift Cluster Management Guide.


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

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


public virtual ModifyClusterParameterGroupResponse ModifyClusterParameterGroup(
         ModifyClusterParameterGroupRequest request
Type: Amazon.Redshift.Model.ModifyClusterParameterGroupRequest

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

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


ClusterParameterGroupNotFoundException The parameter group name does not refer to an existing parameter group.
InvalidClusterParameterGroupStateException The cluster parameter group action can not be completed because another task is in progress that involves the parameter group. Wait a few moments and try the operation again.


This example shows how to modify the parameter group wlm_json_configuration parameter for workload management.

To modify a paramter 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