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Last Updated:Apr 10, 2024

Modifies the maintenance window of a PolarDB cluster.

Operation description

Note We recommend that you set the routine maintenance window to off-peak hours. Alibaba Cloud maintains your cluster within the specified maintenance window to minimize the negative impacts on your business.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

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 Resources is 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.
OperationAccess levelResource typeCondition keyAssociated operation
  • DBCluster

Request parameters


The cluster ID.


The maintenance window of the cluster. Specify the maintenance window in the HH:mmZ-HH:mmZ format. For example, the value 16:00Z-17:00Z indicates that the cluster can be maintained from 00:00 to 01:00 (UTC+8).

Note The maintenance window must start on the hour and last for an hour.

Response parameters


The request ID.



Sample success responses


  "RequestId": "70656639-1416-479F-AF13-D08197******"

Error codes

HTTP status codeError codeError messageDescription
400InvalidMaintainTime.MalformedThe specified parameter MaintainTime is not valid.The specified MaintainTime parameter is invalid.
404InvalidDBCluster.NotFoundThe DBClusterId provided does not exist in our records.The specified DBClusterId parameter does not exist in the current record.
404InvalidDBClusterId.MalformedThe specified parameter DBClusterId is not valid.The specified DBClusterId parameter is invalid.

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2023-09-12The Error code has changedsee changesets
Change itemChange content
Error CodesThe Error code has changed.
    Error Codes 404 change
    Added Error Codes: 400