# CreateDBClusterParameterGroup
<a name="API_CreateDBClusterParameterGroup"></a>

Creates a new DB cluster parameter group.

Parameters in a DB cluster parameter group apply to all of the instances in a DB cluster.

A DB cluster parameter group is initially created with the default parameters for the database engine used by instances in the DB cluster. To provide custom values for any of the parameters, you must modify the group after creating it using `ModifyDBClusterParameterGroup`. Once you've created a DB cluster parameter group, you need to associate it with your DB cluster using `ModifyDBCluster`.

When you associate a new DB cluster parameter group with a running Aurora DB cluster, reboot the DB instances in the DB cluster without failover for the new DB cluster parameter group and associated settings to take effect.

When you associate a new DB cluster parameter group with a running Multi-AZ DB cluster, reboot the DB cluster without failover for the new DB cluster parameter group and associated settings to take effect.

**Important**  
After you create a DB cluster parameter group, you should wait at least 5 minutes before creating your first DB cluster that uses that DB cluster parameter group as the default parameter group. This allows Amazon RDS to fully complete the create action before the DB cluster parameter group is used as the default for a new DB cluster. This is especially important for parameters that are critical when creating the default database for a DB cluster, such as the character set for the default database defined by the `character_set_database` parameter. You can use the *Parameter Groups* option of the [Amazon RDS console](https://console.aws.amazon.com/rds/) or the `DescribeDBClusterParameters` operation to verify that your DB cluster parameter group has been created or modified.

For more information on Amazon Aurora, see [ What is Amazon Aurora?](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/CHAP_AuroraOverview.html) in the *Amazon Aurora User Guide*.

For more information on Multi-AZ DB clusters, see [ Multi-AZ DB cluster deployments](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/multi-az-db-clusters-concepts.html) in the *Amazon RDS User Guide*.

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

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

 ** DBClusterParameterGroupName **   
The name of the DB cluster parameter group.  
Constraints:  
+ Must not match the name of an existing DB cluster parameter group.
This value is stored as a lowercase string.
Type: String  
Required: Yes

 ** DBParameterGroupFamily **   
The DB cluster parameter group family name. A DB cluster parameter group can be associated with one and only one DB cluster parameter group family, and can be applied only to a DB cluster running a database engine and engine version compatible with that DB cluster parameter group family.  
 **Aurora MySQL**   
Example: `aurora-mysql5.7`, `aurora-mysql8.0`   
 **Aurora PostgreSQL**   
Example: `aurora-postgresql14`   
 **RDS for MySQL**   
Example: `mysql8.0`   
 **RDS for PostgreSQL**   
Example: `postgres13`   
To list all of the available parameter group families for a DB engine, use the following command:  
 `aws rds describe-db-engine-versions --query "DBEngineVersions[].DBParameterGroupFamily" --engine <engine>`   
For example, to list all of the available parameter group families for the Aurora PostgreSQL DB engine, use the following command:  
 `aws rds describe-db-engine-versions --query "DBEngineVersions[].DBParameterGroupFamily" --engine aurora-postgresql`   
The output contains duplicates.
The following are the valid DB engine values:  
+  `aurora-mysql` 
+  `aurora-postgresql` 
+  `mysql` 
+  `postgres` 
Type: String  
Required: Yes

 ** Description **   
The description for the DB cluster parameter group.  
Type: String  
Required: Yes

 **Tags.Tag.N**   
Tags to assign to the DB cluster parameter group.  
Type: Array of [Tag](API_Tag.md) objects  
Required: No

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

The following element is returned by the service.

 ** DBClusterParameterGroup **   
Contains the details of an Amazon RDS DB cluster parameter group.  
This data type is used as a response element in the `DescribeDBClusterParameterGroups` action.  
Type: [DBClusterParameterGroup](API_DBClusterParameterGroup.md) object

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

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

 ** DBParameterGroupAlreadyExists **   
A DB parameter group with the same name exists.  
HTTP Status Code: 400

 ** DBParameterGroupQuotaExceeded **   
The request would result in the user exceeding the allowed number of DB parameter groups.  
HTTP Status Code: 400

## Examples
<a name="API_CreateDBClusterParameterGroup_Examples"></a>

### Example
<a name="API_CreateDBClusterParameterGroup_Example_1"></a>

This example illustrates one usage of CreateDBClusterParameterGroup.

#### Sample Request
<a name="API_CreateDBClusterParameterGroup_Example_1_Request"></a>

```
https://rds.us-east-1.amazonaws.com/
    ?Action=CreateDBClusterParameterGroup
    &DBClusterParameterGroupName=samplegroup
    &DBParameterGroupFamily=aurora5.6
    &Description=Sample%20group
    &SignatureMethod=HmacSHA256
    &SignatureVersion=4
    &Version=2014-10-31
    &X-Amz-Algorithm=AWS4-HMAC-SHA256
    &X-Amz-Credential=AKIADQKE4SARGYLE/20150318/us-east-1/rds/aws4_request
    &X-Amz-Date=20150318T183624Z
    &X-Amz-SignedHeaders=content-type;host;user-agent;x-amz-content-sha256;x-amz-date
    &X-Amz-Signature=86d521a3a117a033df0aa381fde0cd8a5ab5c7ab87a29aa9154438c3790ba611
```

#### Sample Response
<a name="API_CreateDBClusterParameterGroup_Example_1_Response"></a>

```
<CreateDBClusterParameterGroupResponse xmlns="http://rds.amazonaws.com/doc/2014-10-31/">
  <CreateDBClusterParameterGroupResult>
    <DBClusterParameterGroup>
      <DBParameterGroupFamily>aurora5.6</DBParameterGroupFamily>
      <Description>Sample group</Description>
      <DBClusterParameterGroupName>samplegroup</DBClusterParameterGroupName>
    </DBClusterParameterGroup>
  </CreateDBClusterParameterGroupResult>
  <ResponseMetadata>
    <RequestId>ae81a963-cd9d-11e4-8b88-8351746a4c92</RequestId>
  </ResponseMetadata>
</CreateDBClusterParameterGroupResponse>
```

## See Also
<a name="API_CreateDBClusterParameterGroup_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/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBClusterParameterGroup) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/CreateDBClusterParameterGroup)