---
title: "GET /#Action=ModifyDBCluster"
method: GET
path: "/#Action=ModifyDBCluster"
---

# GET /#Action=ModifyDBCluster

`GET /#Action=ModifyDBCluster`

Modify a setting for a DB cluster. You can change one or more database configuration parameters by specifying these parameters and the new values in the request.

## Query parameters

- `DBClusterIdentifier` string, required
- `NewDBClusterIdentifier` string
- `ApplyImmediately` boolean
- `BackupRetentionPeriod` integer
- `DBClusterParameterGroupName` string
- `VpcSecurityGroupIds` string[]
- `Port` integer
- `MasterUserPassword` string
- `OptionGroupName` string
- `PreferredBackupWindow` string
- `PreferredMaintenanceWindow` string
- `EnableIAMDatabaseAuthentication` boolean
- `CloudwatchLogsExportConfiguration` object — <p>The configuration setting for the log types to be enabled for export to CloudWatch Logs for a specific DB instance or DB cluster.</p> <p>The <code>EnableLogTypes</code> and <code>DisableLogTypes</code> arrays determine which logs will be exported (or not exported) to CloudWatch Logs.</p>
  - `EnableLogTypes` String[] — The list of log types to enable.
  - `DisableLogTypes` String[] — The list of log types to disable.
- `EngineVersion` string
- `AllowMajorVersionUpgrade` boolean
- `DBInstanceParameterGroupName` string
- `DeletionProtection` boolean
- `CopyTagsToSnapshot` boolean
- `ServerlessV2ScalingConfiguration` object — <p>Contains the scaling configuration of a Neptune Serverless DB cluster.</p> <p>For more information, see <a href="https://docs.aws.amazon.com/neptune/latest/userguide/neptune-serverless-using.html">Using Amazon Neptune Serverless</a> in the <i>Amazon Neptune User Guide</i>.</p>
  - `MinCapacity` number, double — The minimum number of Neptune capacity units (NCUs) for a DB instance in a Neptune Serverless cluster. You can specify NCU values in half-step increments, such as 8, 8.5, 9, and so on.
  - `MaxCapacity` number, double — The maximum number of Neptune capacity units (NCUs) for a DB instance in a Neptune Serverless cluster. You can specify NCU values in half-step increments, such as 40, 40.5, 41, and so on.
- `Action` 'ModifyDBCluster', required
- `Version` '2014-10-31', required

## Response `200`

Success

## Other responses

- `480` — DBClusterNotFoundFault
- `481` — InvalidDBClusterStateFault
- `482` — StorageQuotaExceededFault
- `483` — DBSubnetGroupNotFoundFault
- `484` — InvalidVPCNetworkStateFault
- `485` — InvalidDBSubnetGroupStateFault
- `486` — InvalidSubnet
- `487` — DBClusterParameterGroupNotFoundFault
- `488` — InvalidDBSecurityGroupStateFault
- `489` — InvalidDBInstanceStateFault
- `490` — DBClusterAlreadyExistsFault

---

[API](https://skmtc.net/aws/apis/neptune.md) · [All operations](https://skmtc.net/aws/apis/neptune/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/aws/neptune/revisions/c3673ca75718/schema)