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PolarDB:ModifyLogBackupPolicy

Last Updated:Oct 30, 2025

Modifies the log backup retention policy for a PolarDB cluster.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

polardb:ModifyLogBackupPolicy

update

*dbcluster

acs:polardb:{#regionId}:{#accountId}:dbcluster/{#dbclusterId}

None None

Request parameters

Parameter

Type

Required

Description

Example

DBClusterId

string

Yes

The cluster ID.

Note

Call the DescribeDBClusters operation to query the details of all clusters in a region, including the cluster IDs.

pc-****************

LogBackupRetentionPeriod

string

No

The log backup retention period. Valid values:

  • 3 to 7300: The log backup retention period in days.

  • -1: The log backups are retained for a long time.

Note
    • After you enable advanced backup, this parameter is no longer valid. Use the AdvancedLogPolicies parameter.

3

LogBackupAnotherRegionRegion

string

No

The destination region for the cross-region log backup. For information about regions that support cross-region backup, see Overview.

Note
    • After you enable advanced backup, this parameter is no longer valid. Use the AdvancedLogPolicies parameter.

cn-hangzhou

LogBackupAnotherRegionRetentionPeriod

string

No

The retention period of the cross-region log backup. Valid values:

  • 0: Disables the cross-region log backup feature.

  • 30 to 7300: The retention period of the cross-region log backup in days.

  • -1: The cross-region log backups are retained for a long time.

Note
    • When you create a cluster, the default value of this parameter is 0. A value of 0 disables the cross-region log backup feature.

    • After you enable advanced backup, this parameter is no longer valid. Use the AdvancedLogPolicies parameter.

30

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

345174B4-FAB3-412E-A326-BEDDA9******

Examples

Success response

JSON format

{
  "RequestId": "345174B4-FAB3-412E-A326-BEDDA9******"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidLogBackupRetentionPeriod.Malformed The specified parameter LogBackupRetentionPeriod is not valid. The specified LogBackupRetentionPeriod parameter is invalid.
400 InvalidLogBackupAnotherRegionRetentionPeriod.Malformed The specified parameter LogBackupAnotherRegionRetentionPeriod is not valid. The specified LogBackupAnotherRegionRetentionPeriod parameter is invalid.
400 InvalidLogBackupAnotherRegionRegion.NotFound The specified parameter LogBackupAnotherRegionRegion does not found. The specified LogBackupAnotherRegionRegion parameter is not found.
404 InvalidDBCluster.NotFound The DBClusterId provided does not exist in our records. The specified DBClusterId parameter does not exist in the current record.
404 InvalidDBClusterId.Malformed The specified parameter DBClusterId is not valid. The specified DBClusterId parameter is invalid.
404 InvalidDBClusterId.NotFound The DBInstanceId provided does not exist in our records. The specified DBClusterId parameter does not exist in the current record.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.