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OpenSearch:ListInstances

Last Updated:Nov 14, 2025

Retrieves a list of instances.

Operation description

Method

GET

URI

/openapi/ha3/instances

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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

searchengine:ListInstances

get

*Instance

acs:searchengine:{#regionId}:{#accountId}:instance/*

None None

Request syntax

GET /openapi/ha3/instances HTTP/1.1

Request parameters

Parameter

Type

Required

Description

Example

pageNumber

integer

No

The page number. The default value is 1.

1

pageSize

integer

No

The number of entries to return on each page. The default value is 10. The value must be in the range of 1 to 50.

10

instanceId

string

No

The ID of the instance.

ha-cn-pl32rf0****

description

string

No

Filters instances by description. Fuzzy matching is supported.

searchengine instance

resourceGroupId

string

No

The ID of the resource group.

rg-aekzgpiswzbksdi

edition

string

No

The edition of the instance. Valid values: vector (Vector Search Edition) and engine (Retrieval Engine Edition).

vector

tags

array<object>

No

The tags.

object

No

The tags of the instance.

key

string

No

The tag key.

opensearch

value

string

No

The tag value.

opensearch

catalog

string

No

database

string

No

table

string

No

dataSourceType

string

No

ParameterTypeRequiredDescription
statusStringNoFilters instances by status. Valid values: Running, Ready, Initializing, and Starting.
expiredTimeLongNoA UNIX timestamp in seconds. This parameter is used to filter instances by expiration time. If the value is greater than the current time, instances that are about to expire are returned. Expired instances are not included.

Example

Sample request

GET /openapi/ha3/instances?name=test&instanceId=abc&page=1&size=10

Response elements

Element

Type

Description

Example

object

The response schema.

result

array<object>

The returned result.

array<object>

The details of the instance.

description

string

The description of the instance.

test

resourceGroupId

string

The ID of the resource group.

ha-cn-pl32rf0****

expiredTime

string

The expiration time.

1634885083

commodityCode

string

The commodity code.

opensearch_ha3post_public_cn

status

string

The status of the instance.

READY

instanceId

string

The ID of the instance.

ha-cn-pl32rf0****

createTime

string

The time when the instance was created.

2022-06-04T02:03:21Z

lockMode

string

The lock status.

Unlock

chargeType

string

The billing method.

POSTPAY

updateTime

string

The time when the instance was last updated.

2018-12-06T11:17:49.0

inDebt

boolean

Indicates whether the instance has an overdue payment.

false

network

object

The network information of the search engine instance.

vSwitchId

string

The ID of the virtual switch.

vsw-bp11ldcf59q2n****

vpcId

string

The ID of the virtual private cloud (VPC).

vpc-wz9axk41d9vff****

endpoint

string

The gateway endpoint.

ha-cn-35t3r****.ha.aliyuncs.com

publicEndpoint

string

The public domain name.

ha-cn-35t3ni****.public.ha.aliyuncs.com

allow

string

The whitelist for the public domain name.

127.0.0.1

tags

array<object>

The tags.

object

The tags.

key

string

The tag key.

opensearch

value

string

The tag value.

opensearch

edition

string

The edition of the instance.vector: Vector Search Editionengine: Retrieval Engine Edition

vector

userName

string

The username.

admin

version

string

The version of the engine.

ha3_3.10.0

noQrs

boolean

Indicates whether the instance is a standalone instance.

false

spec

object

The specifications of the nodes.

qrsResource

object

The specifications of the query nodes.

category

string

The instance type. Valid values:local_ssd: local solid-state drive (SSD)cloud: disk

local_ssd

cpu

integer

The number of CPU cores.

1

mem

integer

The memory size in GB.

10

disk

integer

The storage space of the node in GB.

100

nodeCount

integer

The number of nodes.

3

searchResource

object

The specifications of the data nodes.

category

string

The instance type. Valid values:local_ssd: local SSDcloud: disk

local_ssd

cpu

integer

The number of CPU cores.

1

mem

integer

The memory size in GB.

10

disk

integer

The storage space of the node in GB.

100

nodeCount

integer

The number of nodes.

3

dataSourceDetails

array<object>

array<object>

indexName

string

type

string

config

object

endpoint

string

accessKey

string

project

string

partition

string

table

string

namespace

string

path

string

ossPath

string

bucket

string

catalog

string

database

string

tag

string

totalCount

integer

The total number of entries.

5

requestId

string

The ID of the request.

89B968E6-1E41-58DF-BB25-5F98ECC759CE

Sample responses

Sample success response

{
    "result":
    [
        {
            "inDebt": false,
            "lockMode": "Unlock",
            "trFreeUrl": "",
            "chargeType": "POSTPAY",
            "edition": "engine",
            "description": "test",
            "updateTime": "2024-05-06 14:08:24.0",
            "userName": "admin",
            "version": "ha3_3.10.0",
            "spec":
            {
                "qrsResource":
                {
                    "category": "local_ssd",
                    "cpu": 2,
                    "mem": 8,
                    "disk": 100,
                    "nodeCount": 5
                },
                "searchResource":
                {
                    "category": "local_ssd",
                    "cpu": 2,
                    "mem": 16,
                    "disk": 100,
                    "nodeCount": 4
                }
            },
            "network":
            {
                "vSwitchId": "vsw-bp179zkffzyva26ua8xil",
                "vpcId": "vpc-bp1956duqqe2lm2lvqjf1",
                "endpoint": "ha-cn-35t3ni61z06.ha.aliyuncs.com",
                "publicEndpoint": "ha-cn-35t3ni61z06.public.ha.aliyuncs.com",
                "allow": "127.0.0.1"
            },
            "tags":
            [
                {
                    "value": "rg-acfmv2hk2jpsxia",
                    "key": "acs:rm:rgId"
                }
            ],
            "noQrs": false,
            "instanceId": "ha-cn-35t3ni61z06",
            "createTime": "2024-03-14 10:49:32.0",
            "commodityCode": "opensearch_ha3post_public_cn",
            "resourceGroupId": "rg-acfmv2hk2jpsxia",
            "status": "READY"
        }
    ],
    "requestId": "949FDF5E-6FF6-13B9-A196-59B25F143B7F",
    "totalCount": 1
}

Sample error response

{
  "requestId": "BD1EA715-DF6F-06C2-004C-C1FA0D3A9820",
  "httpCode": 404,
  "code": "App.NotFound",
  "message": "App not found"
}

Examples

Success response

JSON format

{
  "result": [
    {
      "description": "test",
      "resourceGroupId": "ha-cn-pl32rf0****",
      "expiredTime": "1634885083",
      "commodityCode": "opensearch_ha3post_public_cn",
      "status": "READY",
      "instanceId": "ha-cn-pl32rf0****",
      "createTime": "2022-06-04T02:03:21Z",
      "lockMode": "Unlock",
      "chargeType": "POSTPAY",
      "updateTime": "2018-12-06T11:17:49.0",
      "inDebt": false,
      "network": {
        "vSwitchId": "vsw-bp11ldcf59q2n****",
        "vpcId": "vpc-wz9axk41d9vff****",
        "endpoint": "ha-cn-35t3r****.ha.aliyuncs.com",
        "publicEndpoint": "ha-cn-35t3ni****.public.ha.aliyuncs.com",
        "allow": "127.0.0.1"
      },
      "tags": [
        {
          "key": "opensearch",
          "value": "opensearch"
        }
      ],
      "edition": "vector",
      "userName": "admin",
      "version": "ha3_3.10.0",
      "noQrs": false,
      "spec": {
        "qrsResource": {
          "category": "local_ssd",
          "cpu": 1,
          "mem": 10,
          "disk": 100,
          "nodeCount": 3
        },
        "searchResource": {
          "category": "local_ssd",
          "cpu": 1,
          "mem": 10,
          "disk": 100,
          "nodeCount": 3
        }
      },
      "dataSourceDetails": [
        {
          "indexName": "",
          "type": "",
          "config": {
            "endpoint": "",
            "accessKey": "",
            "project": "",
            "partition": "",
            "table": "",
            "namespace": "",
            "path": "",
            "ossPath": "",
            "bucket": "",
            "catalog": "",
            "database": "",
            "tag": ""
          }
        }
      ]
    }
  ],
  "totalCount": 5,
  "requestId": "89B968E6-1E41-58DF-BB25-5F98ECC759CE"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.