Help Center/ Distributed Database Middleware/ API Reference/ APIs (Recommended)/ DDM Instances/ Querying Details of a DDM Instance
Updated on 2026-06-05 GMT+08:00
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Querying Details of a DDM Instance

Function

This API is used to query details about a DDM instance.

Constraints

None

URI

GET /v1/{project_id}/instances/{instance_id}

Table 1 URI parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID of a tenant in a region

To obtain this value, see Obtaining a Project ID.

instance_id

Yes

String

DDM instance ID

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token.

You can obtain the token by calling the IAM API used to obtain a user token.

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

id

String

DDM instance ID

status

String

DDM instance status. For details about this parameter value, see Status Description.

name

String

DDM instance name

created

String

Time when the DDM instance is created. The time must be in the format of yyyy-mm-dd Thh:mm:ssZ.

updated

String

Time when the DDM instance is last updated

available_zone

String

Name of the AZ where the DDM instance is located

vpc_id

String

VPC ID

subnet_id

String

Subnet ID

security_group_id

String

Security group ID

node_count

Integer

Number of nodes

access_ip

String

Address for accessing the DDM instance

access_port

String

Port for accessing the DDM instance

node_status

String

Node status

core_count

String

Number of vCPUs

ram_capacity

String

Memory size in GB

error_msg

String

Response message. This parameter is not returned if no abnormality occurs.

project_id

String

Project ID

order_id

String

Order ID. No value is returned when a pay-per-use instance is created.

enterprise_project_id

String

Enterprise project ID

engine_version

String

Engine version

nodes

Array of GetDetailfNodesInfo objects

Node information

admin_user_name

String

Username of the administrator. The username:

enable_ssl

Boolean

Whether SSL is enabled. The value can be:

  • true: SSL is enabled for the instance.
  • false: SSL is disabled for the instance.

flavor_ref

String

Specification code
Table 4 GetDetailfNodesInfo

Parameter

Type

Description

status

String

Status of the DDM instance node

port

String

Port of the DDM instance node

ip

String

IP address of the DDM instance node. If load balancing is enabled, the value is the ELB IP address of the group that the node belongs to.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

errCode

String

Service error code

externalMessage

String

Error message

Status code: 500

Table 6 Response body parameters

Parameter

Type

Description

errCode

String

Service error code

externalMessage

String

Error message

Example Request

Querying details of a DDM instance

GET https://{endpoint}/v1/{project_id}/instances/{instance_id}

Example Response

Status code: 200

OK

{
  "nodes" : [ {
    "status" : "RUNNING",
    "port" : 5066,
    "ip" : "192.168.0.160"
    
    
  } ],
  "id" : "1f5c9fd6cd984056ba89c8c87cc03278in09",
  "status" : "RUNNING",
  "name" : "ddm2-test",
  "created" : "2021-11-09T03:30:01+0000",
  "updated" : "2021-12-15T09:12:58+0000",
  "available_zone" : "az1",
  "vpc_id" : "cfaa4024-0603-4aba-81d4-2203b4ad26fb",
  "subnet_id" : "48f270ef-af70-4ad9-bb1c-c28dd5b37f93",
  "security_group_id" : "bc28ef93-0083-4652-bce6-381e14284db6",
  "node_count" : 1,
  "access_ip" : "192.168.0.160",
  "access_port" : "5066",
  "core_count" : "2",
  "ram_capacity" : "8",
  "node_status" : "RUNNING",
  "enterprise_project_id" : "0",
  "project_id" : "070c071d8e80d58c2f42c0121b10cf9f",
  "engine_version" : "3.0.6",
  "admin_user_name" : "root",
  "enable_ssl" : false,
  "flavor_ref" : "ddm.c6.large.2"
}

Status code: 400

Bad request

{
  "externalMessage" : "Parameter error.",
  "errCode" : "DBS.280001"
}

Status code: 500

Server error

{
  "externalMessage" : "Server failure.",
  "errCode" : "DBS.200412"
}

Status Codes

Status Code

Description

200

OK

400

Bad request

500

Server error

Error Codes

For details, see Error Codes.

Parent topic: DDM Instances