Creates a read-only instance.
Operation description
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
| Operation | Access level | Resource type | Condition key | Associated operation |
|---|---|---|---|---|
| rds:CreateReadOnlyDBInstance | create | *DBInstance acs:rds:{#regionId}:{#accountId}:dbinstance/{#dbinstanceId} |
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| ClientToken | string | No | The client token that is used to ensure the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. The token can contain only ASCII characters and cannot exceed 64 characters in length. | ETnLKlblzczshOTUbOC**** |
| RegionId | string | Yes | The region ID. The read-only instance and the primary instance must reside in the same region. You can call the DescribeRegions operation to query the most recent region list. | cn-hangzhou |
| ZoneId | string | Yes | The zone ID. You can call the DescribeRegions operation to query the zone ID.
| cn-hangzhou-b |
| DBInstanceId | string | Yes | The primary instance ID. You can call the DescribeDBInstances operation to query the instance ID. | rm-uf6wjk5**** |
| DBInstanceClass | string | Yes | The instance type of the read-only instance. For more information, see Read-only instance types. We recommend that you specify an instance type whose specifications are higher than or equal to the specifications of the instance type of the primary instance. If the specifications of the read-only instance are lower than the specifications of the primary instance, the read-only instance may encounter issues such as high latency and heavy load. | rds.mys2.small |
| DBInstanceStorage | integer | Yes | The storage capacity of the read-only instance. The storage capacity of the read-only instance must be greater than or equal to that of the primary instance. For more information, see the Storage capacity column in Read-only instance types. This value must be a multiple of 5. Unit: GB. | 20 |
| EngineVersion | string | Yes | The version of the database engine. The read-only instance and the primary instance must run the same major engine version.
| 5.6 |
| PayType | string | Yes | The billing method of the read-only instance. Valid values:
| Postpaid |
| DBInstanceDescription | string | No | The description of the read-only instance. The description must be 2 to 256 characters in length and can contain letters, digits, underscores (_), and hyphens (-). The value must start with a letter Note
The value cannot start with http:// or https://.
| Test read-only instance |
| InstanceNetworkType | string | No | The network type of the read-only instance. Valid values:
Default value: VPC. If you set this parameter to VPC, you must also specify the VPCId and VSwitchId parameters. Note
The network type of the read-only instance can be different from the network type of the primary instance.
| Classic |
| VPCId | string | No | The virtual private cloud (VPC) ID of the read-only instance. If you leave the InstanceNetworkType parameter empty or set it to VPC, you must also specify this parameter. Note
| vpc-uf6f7l4fg90**** |
| VSwitchId | string | No | The vSwitch ID of the read-only instance. If you leave the InstanceNetworkType parameter empty or set it to VPC, you must specify the VSwitchId parameter. | vsw-uf6adz52c2p**** |
| PrivateIpAddress | string | No | The private IP address of the read-only instance. The private IP address must be within the CIDR block that is supported by the specified vSwitch. The system assigns a private IP address to the read-only instance based on the values of the VPCId and VSwitchId parameters. | 172.16.XX.XX |
| ResourceGroupId | string | No | The ID of the resource group. | rg-acfmy**** |
| Category | string | No | The RDS edition of the instance. Valid values:
Note
The read-only instances of the primary instance that run PostgreSQL and use cloud disks run RDS Basic Edition. Therefore, set this parameter to Basic.
| HighAvailability |
| DBInstanceStorageType | string | No | The storage type of the instance. Valid values:
Note
| local_ssd |
| DedicatedHostGroupId | string | No | The ID of the dedicated cluster to which the read-only instance belongs. This parameter is valid when you create the read-only instance in a dedicated cluster. | dhg-4n**** |
| TargetDedicatedHostIdForMaster | string | No | The ID of the host on which the primary instance resides. This parameter is valid when you create the read-only instance in a dedicated cluster. | i-bp**** |
| GdnInstanceName | string | No | A reserved parameter. | None |
| TddlBizType | string | No | A reserved parameter. | None |
| TddlRegionConfig | string | No | A reserved parameter. | None |
| InstructionSetArch | string | No | A reserved parameter. | None |
| UsedTime | string | No | The subscription duration of the read-only instance. Valid values:
Note
If you set the PayType parameter to Prepaid, you must specify the UsedTime parameter.
| 1 |
| Period | string | No | The renewal cycle of the read-only instance. Valid values:
| Month |
| AutoRenew | string | No | Specifies whether to enable the auto-renewal feature for the read-only instance. If you set the PayType parameter to Prepaid, you must also specify this parameter. Valid values:
Note
| true |
| DeletionProtection | boolean | No | Specifies whether to enable the release protection feature for the read-only instance. Valid values:
Note
You can enable the release protection feature for the read-only instance only when you set the PayType parameter to Postpaid.
| true |
| Port | string | No | The port that can be initialized when you create a read-only ApsaraDB RDS for MySQL instance. Valid values: 1000 to 65534. | 3306 |
| AutoPay | boolean | No | Specifies whether to automatically complete the payment. Valid values:
Note
Default value: true. If your account balance is insufficient, you can set the AutoPay parameter to false to generate an unpaid order. Then, you can log on to the ApsaraDB RDS console to complete the payment.
| false |
| AutoCreateProxy | boolean | No | Specifies whether to automatically create database proxies. Valid values:
| false |
| IoAccelerationEnabled | string | No | A reserved parameter. | None |
Response parameters
Examples
Sample success responses
JSONformat
{
"ConnectionString": "rr-****.mysql.rds.aliyuncs.com",
"DBInstanceId": "rr-uf6wjk5****",
"OrderId": "10078937****",
"Port": "3306",
"RequestId": "1E43AAE0-BEE8-43DA-860D-EAF2AA0724DC"
}Error codes
| HTTP status code | Error code | Error message | Description |
|---|---|---|---|
| 400 | InvalidEngineVersion.Malformed | The specified parameter EngineVersion is not valid. | - |
| 400 | InvalidNetworkTypeClassicWhenCloudStorage | The Specified InstanceNetworkType value Classic is not valid when choose cloud storage type. | When selecting a cloud storage type, specifying a InstanceNetworkType value of Classic is not valid. |
| 400 | InvalidSecurityIPList.Malformed | The specified parameter SecurityIPList is not valid. | - |
| 400 | InvalidSecurityIPList.Duplicate | The Security IP address is not in the available range or occupied. | The IP address is invalid. Specify a valid IP address. |
| 400 | InvalidParameter | The specified parameter dbInstanceId is not valid. | - |
| 400 | OperationDenied | VPC IP is in use, please check. | The operation failed. The VPC IP address has been used. |
| 400 | InvalidZoneId.NotSupported | The Specified vpc Zone not supported. | VPC-hosted RDS instances cannot be created in the zone. Specify a different zone. |
| 400 | InvalidAvZone.NotSupport | Specified availableArea multiZone does not support in RDS. | - |
| 400 | CDDC.AvailableHostsNotEnoughInZone | Not enough available hosts are in the target zone. | - |
| 400 | InvalidReadEngineVersionPattern | The engine versions of the primary instance and the read-only instance do not match. | - |
| 400 | InvalidDBInstanceClass.Offline | The specified instance type is no longer provided. Please specify another instance type. | The instance type that you select is no longer available. Select another instance type. |
| 400 | SYSTEM.CONCURRENT_OPERATE | Concurrent operation is detected. | Concurrent operations are run in the system. |
| 400 | Price.PricingPlanResultNotFound | Pricing plan price result not found. | Pricing plan price result not found. |
| 400 | InvalidDBInstanceName.Duplicate | Specified DB instance name already exists in the Aliyun RDS. | The operation failed. The instance name already exists. Specify a different name and try again. |
| 400 | InvalidInstanceLevel.DiskType | Specified instance level not support request disk type | The current instance type does not support the specified storage type. |
| 400 | InvalidRequestId | The request is copy, check your token. | The request is copy, check your token. |
| 400 | InvalidParam.InstanceNetworkType | Creation of classic network instances is not supported. | Classic network offline, does not support the creation of classic network instances! |
| 400 | Order.ComboInstanceNotAllowOperate | A package instance is not allowed to operate independently. | A package instance is not allowed to operate independently. |
| 400 | Order.NoRealNameAuthentication | You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the user center for real-name authentication. | You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the cost and cost for real-name authentication. |
| 400 | InsufficientAvailableQuota | Your account quota limit is less than 0, please recharge before trying to purchase. | Your account available limit is less than 0, please recharge before trying to purchase. |
| 400 | CommodityServiceCalling.Exception | Failed to call commodity service. | Failed to call commodity service return. |
| 400 | RegionDissolvedEOM | Dear customer, Alibaba Cloud plans to optimize and adjust the current region. Cloud services in this region will cease operations. You are currently unable to operate new purchase orders. Thank you for your understanding and support. | Hello, Alibaba Cloud plans to optimize and adjust the current region. Cloud services in this region will stop operating. In order to ensure your business continuity and smooth transition of data migration, you are currently unable to operate new purchase orders. Thank you for your understanding and support. |
| 400 | Commodity.InvalidComponent | The module you purchased is not legal, please buy it again. | The module you purchased is not legal, please buy it again. |
| 400 | RegionEndTimeDissolvedAustralia | Cloud services in the Australia (Sydney) region will be discontinued. Set the validity date to September 30, 2024 or earlier than September 30, 2024. | Hello customer, this area has been abolished. |
| 400 | Price.CommoditySys | Commodity system call exception. | Commodity system call exception. |
| 400 | Pay.InsufficientBalance | Insufficient available balance. | Insufficient available balance. |
| 400 | Order.PeriodInvalid | There is a problem with the period you selected, please choose again. | There is a problem with the period you selected, please choose again. |
| 400 | pay.noCreditCard | Account not bound to credit card. | - |
| 400 | Order.InstHasUnpaidOrder | There is an unpaid order for the service you have purchased. Please pay or void it before placing the order. | There is an unpaid order for the service you have purchased. Please pay or void it before placing the order. |
| 400 | noAvailablePaymentMethod | No payment method is specified for your account. We recommend that you add a payment method. | - |
| 400 | BasicInfoUncompleted | Your information is incomplete. Complete your information before the operation. | Your basic information is not complete, please complete your basic information before operation. |
| 400 | Risk.RiskControlRejection | Your account is abnormal, please contact customer service for details. | Your account is abnormal, please contact customer service for details. |
| 400 | BasicInfoUncompleted | Your information is incomplete, Complete your information before the operation. | - |
| 400 | Api.NotSupport | Specified api is not supported. | The current interface does not support. |
| 400 | ContainForbiddenLabelError | There is a label that prohibits placing orders. Please contact your distributor for assistance. | You cannot place the order because a tag indicates that order placement is prohibited. Contact your distributor. |
| 400 | InvalidDBInstanceId.NotFound | The DBInstanceId provided does not exist in records. | The DBInstanceId provided does not exist. |
| 400 | InvalidParam | Sepcified wal level Parameter is invalid. There are still logical slots in instance, so it can not be set as replica. | The specified wal_level parameter is invalid. There is still a copy slot in the instance, so it cannot be set to replica. |
| 400 | KmsApiError | User secret key invalid. | The user key is invalid. |
| 400 | System.SaleValidateFailed | Sales expression validation system error. | A system error occurs when the sales expression is verified. |
| 400 | Abs.InvalidAccount.NotFound | account is not found. | The account does not exist. |
| 400 | SqlExecuteFailedOrTimeout | sql command execution failed or timed out:%s. | SQL command execution failed or timed out |
| 400 | ColdData.EngineVersionNotSupport | The current instance engine version not support coldDataEnabled. | The current instance engine version not support coldDataEnabled. |
| 400 | ColdData.MinorVersionNotSupport | The current instance minor version not support coldDataEnabled. | The current instance minor version not support coldDataEnabled. |
| 400 | IncorrectTargetClasscode | The current instance type does not support this operation. | This operation is not supported by the instance type. |
| 400 | InvalidConnectionString.Duplicate | Specified connection string already exists in the RDS. | The link address name is duplicate. Please reset the connection string. |
| 400 | RequiredParam.NotFound | Required input param is not found. | - |
| 400 | Parameters.Invalid | Parameter error, please check the parameters. | Parameter error, please check the parameters. |
| 400 | BackupPolicyNotSupport | Cold Data won't open with CrossBackup or Flash Backup, please check Backup Policy. | Cold Data won't open with CrossBackup or Flash Backup, please check Backup Policy. |
| 400 | InvalideStatus.Format | The instance status does not support this operation. | - |
| 400 | InvalidReleasedKeepPolicy.Format | Specified Released Keep Policy is not valid. | Specified Released Keep Policy is not valid. |
| 400 | InvalidDBInstanceEngineType.Format | the DB instance engine type does not support this operation. | This operation is not supported for the database engine of the instance. |
| 400 | Pay.NoCreditCard | No credit cards. | No credit cards. |
| 400 | VpcNetworkTypeNotSupport | The vpc network type instance does not support this operation. | The vpc network type instance does not support this operation. |
| 400 | MirrorInsExists | Specified DB instance mirror ins already existed. | Specified DB instance mirror ins already existed. |
| 400 | UnsupportedClassCode | The specified DB instance class stops selling. | The specified DB instance class stops selling. |
| 400 | InvalidBackupSet | The specified database does not exist in the backup set. | The specified database does not exist in the backup set. |
| 400 | OrdTCommodityQueryError | Failed to query for product. | Failed to query product. |
| 400 | ProductInstanceReleased | The instance has been released. Please check before placing the order. | The instance has been released, please verify and place an order. |
| 400 | RegionEndTimeDissolvedIndia | The region is no longer supported. | The region is no longer supported. |
| 403 | OperationDenied.PrimaryDBInstanceStatus | The operation is not permitted due to status of primary instance. | The operation failed. The RDS instance is deployed in a dedicated cluster and is not running. |
| 403 | InvalidReadStorageTypePattern | The storage type of the primary instance and the read-only instance do not match. | - |
| 403 | IncorrectCharacterType | Current DB instance character type does not support this operation. | This operation is not supported for the character type of the instance. |
| 403 | InvalidMultiparamZoneInfoList | Zoneinfo list is invaild. | - |
| 403 | OrderStatus.UnPaid | The specified db instance has unpaid order. | The instance has an unpaid order. Please pay first and try again. |
| 403 | InvalidReduceDiskSize | The storage capacity after the scale-down must be larger than the used amount. | The scale-in target capacity cannot be less than the current storage space usage |
| 403 | CloudSSDNotSupport | Cloud ssd does not support this operation, please upgrade to essd. | - |
| 403 | InvalidUserOperatorPermission | The user permission does not support this operation. | The user is not authorized to perform this operation. |
| 403 | InvalidVswitchId | Specified conn vswitch id is not valid. | - |
| 403 | IncorrectMinorVersion | Current engine minor version does not support operations. | This operation is not supported for the current minor engine version. |
| 403 | OperationDenied.ZoneResource | There is no available zone for inventory. | There is no available zone for inventory. |
| 403 | NotInFlowController | Sorry,no permission. | Sorry,no permission. |
| 403 | InvalidKmsKey | Kms key is disabled. | - |
| 403 | InvalidInstanceLevel.Malformed | Current DB instance level does not support this operation. | The specified database instance type does not support this operation. |
| 404 | IncorrectDBInstanceConnType | Current DB instance conn type does not support this operation. | The operation is not supported for the connection type of the RDS instance. |
| 404 | InvalidDBInstance.NotFound | The specified instance does not exist or is not supported. | The RDS instance cannot be found. Check the ID or name of the RDS instance. |
| 404 | InvalidClusterKms | The current instance does not authorized to access the Key Management Service. | The instance does not have permissions to access Key Management Service (KMS). |
| 404 | Request.NotFound | The requested resource is not available. | The requested resources are unavailable. |
| 404 | HostInfo.NotFound | The specified host info is not found. | - |
| 500 | CannotDecreaseEssdPerfLevel | cannot decrease cloud essd performance level. | The storage type change failed the verification check. The storage type of an RDS instance that runs SQL Server with standard SSDs or ESSDs cannot be changed to local SSDs. |
| 500 | InvalidEssdStorageSize | invalid cloud essd storage size. | The storage size of cloud disks is invalid. Check the storage size. |
| 500 | ExternalFailure | The request processing has failed due to external service failure. | The request processing has failed due to external service failure. |
| 500 | RequestMetaDataFailed | The service request failed. Please try again later or contact service personnel. | The service request failed. Please try again later or contact service personnel. |
| 500 | InvokeProxyFailure | The request processing has failed due to service failure of rds api. | The request failed to be processed due to an RDS API failure. |
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|---|---|
| 2024-11-19 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2024-11-14 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2024-11-12 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2024-11-01 | The Error code has changed | View Change Details |
| 2024-08-27 | The Error code has changed | View Change Details |
| 2024-08-13 | The Error code has changed | View Change Details |
| 2024-07-23 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2024-05-28 | The Error code has changed | View Change Details |
| 2024-05-23 | The Error code has changed | View Change Details |
| 2024-05-22 | The Error code has changed | View Change Details |
| 2024-04-18 | The Error code has changed | View Change Details |
| 2024-01-04 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2023-11-23 | The Error code has changed | View Change Details |
| 2023-11-21 | The Error code has changed | View Change Details |
| 2023-11-07 | The Error code has changed | View Change Details |
| 2023-09-11 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2023-08-10 | The Error code has changed | View Change Details |
| 2023-06-02 | The Error code has changed. The request parameters of the API has changed | View Change Details |
| 2023-04-20 | The Error code has changed | View Change Details |
| 2023-04-07 | The Error code has changed | View Change Details |