Queries the numbers of pending events in different task types.


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Request parameters

Parameter Type Required Example Description
Action String No DescribePendingMaintenanceActions

The operation that you want to perform. Set the value to DescribePendingMaintenanceActions.

RegionId String Yes cn-hangzhou

The ID of the region.

Note If the database engine of the PolarDB cluster is PolarDB O Edition or the ApsaraDB PolarDB PostgreSQL-compatible edition, this parameter is required. If the database engine of the PolarDB cluster is the ApsaraDB PolarDB MySQL-compatible edition, this parameter is optional.
IsHistory Integer No 1

Specifies whether to return the historical tasks. Valid values:

  • 0: returns the current task.
  • 1: returns the historical tasks.

Default value: 0.

Response parameters

Parameter Type Example Description
RequestId String 314127C2-B6C1-4F58-B1F6-E6B645******

The ID of the request.

TypeList Array of Items

The details of pending events.

TaskType String DatabaseSoftwareUpgrading

The task type of pending events. Valid values:

  • DatabaseSoftwareUpgrading: database software upgrades
  • DatabaseHardwareMaintenance: hardware maintenance and upgrades
  • DatabaseStorageUpgrading: database storage upgrades
  • DatabaseProxyUpgrading: minor version upgrades of the proxy
Count Integer 1

The number of pending events.


Sample requests

&<Common request parameters>

Sample success responses

XML format

HTTP/1.1 200 OK


JSON format

HTTP/1.1 200 OK

  "RequestId" : "314127C2-B6C1-4F58-B1F6-E6B645******",
  "TypeList" : [ {
    "TaskType" : "DatabaseSoftwareUpgrading",
    "Count" : 1
  } ]

Error codes

For a list of error codes, visit the API Error Center.