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Enterprise Distributed Application Service:ListEcuByRegion

Last Updated:Dec 22, 2025

Queries the available elastic compute units (ECUs) in a specified namespace.

Operation description

Terms

  • Namespace: the logical concept that is used to isolate resources such as clusters, ECS instances, and applications, and microservices published in EDAS. This concept involves the default namespace and custom namespaces. Each region has a default namespace and supports multiple custom namespaces. By default, only the default namespace is available. You do not need to create a custom namespace if you do not want to isolate resources and microservices.

  • Elastic compute unit (ECU): After an ECS instance is imported to a cluster, the instance becomes an ECU.

  • Elastic compute container (ECC): After you deploy an application to an ECU in a cluster, the ECU becomes an ECC.

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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

edas:ListEcuByRegion

list

*All Resource

*

None None

Request syntax

GET /pop/v5/resource/ecu_list HTTP/1.1

Request parameters

Parameter

Type

Required

Description

Example

LogicalRegionId

string

No

The ID of the namespace.

  • The ID of a custom namespace is in the region ID:namespace identifier format. Example: cn-beijing:tdy218.

  • The ID of the default namespace is in the region ID format. Example: cn-beijing.

cn-beijing 或 cn-beijing:tdy218

Act

string

Yes

Set the value to pop-query.

pop-query

Response elements

Element

Type

Description

Example

object

The content that is returned.

Code

integer

The HTTP status code that is returned.

200

Message

string

The additional information that is returned.

success

RequestId

string

The ID of the request.

00000000-0000-0000-****

EcuEntityList

object

EcuEntity

array<object>

The information about ECUs.

object

The details about ECUs.

VpcId

string

The ID of the virtual private cloud (VPC) in which the ECU resides.

vpc-2zew8mi6gqbo5wf****

UpdateTime

integer

The timestamp when the ECU was last modified. This value is a UNIX timestamp representing the number of milliseconds that have elapsed since January 1, 1970, 00:00:00 UTC.

1572867895575

IpAddr

string

The private IP address of the ECU.

192.168.xxx.xxx

AvailableCpu

integer

The number of available CPU cores for the ECU.

4

CreateTime

integer

The timestamp when the ECU was created. This value is a UNIX timestamp representing the number of milliseconds that have elapsed since the epoch time January 1, 1970, 00:00:00 UTC.

1572539283168

UserId

string

The ID of the Alibaba Cloud account.

edas@aliyun-****.com

InstanceId

string

The ID of the ECU.

i-2ze82h8f4zcn449y****

Mem

integer

The total size of memory. Unit: MB.

0

RegionId

string

The ID of the region in which the ECU resides.

cn-beijing

EcuId

string

The unique ID of the ECU. To query the ID, you can run the dmidecode command on the ECS instance that corresponds to the ECU.

c96c494c-1b91-4456-bbb3-b5afcd16****

Cpu

integer

The total number of CPU cores.

0

DockerEnv

boolean

Indicates whether Docker is installed. Valid values:

  • true: Docker is installed.

  • false: Docker is not installed.

true

Online

boolean

Indicates whether the ECU is online. Valid values:

  • true: The ECU is online.

  • false: The ECU is offline.

false

AvailableMem

integer

The size of available memory for the ECU. Unit: MB.

8192

ZoneId

string

The ID of the zone in which the ECU resides.

cn-beijing-a

Name

string

The name of the ECU.

worker-k8s-for

HeartbeatTime

integer

The timestamp when the last heartbeat detection was performed. This value is a UNIX timestamp representing the number of milliseconds that have elapsed since January 1, 1970, 00:00:00 UTC.

1572867865221

Examples

Success response

JSON format

{
  "Code": 200,
  "Message": "success",
  "RequestId": "00000000-0000-0000-****",
  "EcuEntityList": {
    "EcuEntity": [
      {
        "VpcId": "vpc-2zew8mi6gqbo5wf****",
        "UpdateTime": 1572867895575,
        "IpAddr": "192.168.xxx.xxx",
        "AvailableCpu": 4,
        "CreateTime": 1572539283168,
        "UserId": "edas@aliyun-****.com",
        "InstanceId": "i-2ze82h8f4zcn449y****",
        "Mem": 0,
        "RegionId": "cn-beijing",
        "EcuId": "c96c494c-1b91-4456-bbb3-b5afcd16****",
        "Cpu": 0,
        "DockerEnv": true,
        "Online": false,
        "AvailableMem": 8192,
        "ZoneId": "cn-beijing-a",
        "Name": "worker-k8s-for",
        "HeartbeatTime": 1572867865221
      }
    ]
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.