Function

This API is used to modify the scaling policy of a queue associated with an elastic resource pool.

URI

URI format
PUT /v3/{project_id}/elastic-resource-pools/{elastic_resource_pool_name}/queues/{queue_name}

Parameter description

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
elastic_resource_pool_name	Yes	String	Elastic resource pool name.
project_id	Yes	String	Definition Project ID, which is used for resource isolation. For how to obtain a project ID, see Obtaining a Project ID. Example: 48cc2c48765f481480c7db940d6409d1 Constraints None Range The value can contain up to 64 characters. Only letters and digits are allowed. Default Value None
queue_name	Yes	String	Name of a bound queue.

Request Parameters

**Table 2** Request parameter
Parameter	Mandatory	Type	Description
queue_scaling_policies	Yes	Array of objects	Scaling policy of a queue in an elastic resource pool. A policy contains the period, priority, and CU range. There must be a default scaling policy (period [00:00, 24:00]) for each queue. For details about the parameters, see Table 3.

**Table 3** queue_scaling_policies
Parameter	Mandatory	Type	Description
impact_start_time	Yes	String	Time when a policy takes effect.
impact_stop_time	Yes	String	Time when a policy expires.
priority	Yes	Integer	Priority.
min_cu	Yes	Integer	Minimum number of CUs.
max_cu	Yes	Integer	Maximum number of CUs.
inherit_elastic_resource_pool_max_cu	No	Boolean	Definition Whether queues within the elastic resource pool inherit the maximum CUs of the pool Constraints The setting takes effect only within the period specified by the current scaling policy. You need to manually configure CU limits for other periods. Range true: The maximum CUs of queues equal the maximum CUs of the resource pool within the period specified by the current scaling policy. false: Queues within the elastic resource pool do not inherit the maximum CUs of the pool. Default Value None

Response Parameters

**Table 4** Response parameters
Parameter	Mandatory	Type	Description
is_success	No	Boolean	Whether the request is successfully executed. Value true indicates that the request is successfully executed.
message	No	String	System prompt. If execution succeeds, the message may be left blank.

Example Request

Modify the scaling policy of a queue associated with an elastic resource pool.

{
  "queue_scaling_policies" : [ 
   {
    "priority" : 1,
    "impact_start_time" : "00:00",
    "impact_stop_time" : "24:00",
    "min_cu":"64",
    "max_cu":"752"
   } ,
   {
    "priority" : 100,
    "impact_start_time" : "10:00",
    "impact_stop_time" : "22:00",
    "min_cu":"64",
    "max_cu":"752"
   }, 
  {
    "priority" : 50,
    "impact_start_time" : "22:00",
    "impact_stop_time" : "10:00",
    "min_cu":"64",
    "max_cu":"752"
  } ]
}

Example Response

{
  "is_success" : true,
  "message" : ""
}

Status Codes

Status Code	Description
200	OK

Error Codes

If an error occurs when this API is invoked, the system does not return the result similar to the preceding example, but returns the error code and error information. For details, see Error Codes.

Modifying the Scaling Policy of a Queue Associated with an Elastic Resource Pool