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PolarDB:SubmitHotExpandTask

Last Updated:Jul 10, 2026

Calls the SubmitHotExpandTask operation to submit a hotspot scale-out task.

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Test

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

drds:SubmitHotExpandTask

none

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

DrdsInstanceId

string

Yes

The instance ID.

drdshbga1138****

DbName

string

Yes

The database name.

test

TaskName

string

No

The task name.

test

TaskDesc

string

No

The task description.

test

InstanceDbMapping

array<object>

Yes

The list of target instance data.

object

No

DbList

string

Yes

The target hotspot sharded databases.

hot_test_****_****

InstanceName

string

No

The name of the ApsaraDB RDS instance where the target hotspot database resides.

rm-bp1t1mk5a5bdj****

Mapping

array<object>

Yes

The list of target database data.

object

No

HotDbName

string

No

The name of the hotspot database.

hot_test_****_****

ShardTbValue

string

No

The table-level shard key value.

test

HotTableName

string

No

The name of the hotspot sharded table. The name must use the logical table name as a prefix.

test_table_*****

ShardDbValue

string

No

The database-level shard key value.

test

TbShardColumn

string

No

The table shard key of the associated table.

platform

DbShardColumn

string

No

The database shard key of the associated table.

platform

LogicTable

string

No

The name of the logical table for hotspot scale-out.

test_table

SupperAccountMapping

array<object>

No

The list of privileged account data.

object

No

InstanceName

string

No

The instance ID of the ApsaraDB RDS instance that has a privileged account.

rm-bp1t1mk5a5bdj****

SupperAccount

string

No

The name of the privileged account for the ApsaraDB RDS instance.

test

SupperPassword

string

No

The password of the privileged account for the ApsaraDB RDS instance.

11111111

ExtendedMapping

array<object>

Yes

The list of scale-out data.

object

No

SrcDb

string

No

The name of the source physical sharded database.

test

SrcInstanceId

string

No

The instance ID of the ApsaraDB RDS instance where the source physical database sharding resides.

rm-bp1t1mk5a5bdj****

Response elements

Element

Type

Description

Example

object

Success

boolean

Indicates whether the request was successful.

true

RequestId

string

The request ID.

0B6B7BDC-575D-4A77-A4F8-24B7EFERV45Y

Examples

Success response

JSON format

{
  "Success": true,
  "RequestId": "0B6B7BDC-575D-4A77-A4F8-24B7EFERV45Y"
}

Error codes

HTTP status code

Error code

Error message

Description

500 InternalError The request processing has failed due to some unknown error.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.