Querying CN Nodes of a Cluster

Function

This API is used to query the CN node list of a cluster.

Calling Method

For details, see Calling APIs.

URI

GET /v1.0/{project_id}/clusters/{cluster_id}/cns

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID. To obtain the value, see Obtaining a Project ID. Constraints N/A Range N/A Default Value N/A
cluster_id	Yes	String	Definition Cluster ID. For details about how to obtain the value, see Obtaining the Cluster ID. Constraints N/A Range N/A Default Value N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 2** Response body parameters
Parameter	Type	Description
min_num	Integer	Definition Minimum number of CN nodes supported by the cluster. Range N/A
max_num	Integer	Definition Maximum number of CN nodes supported by the cluster. Range N/A
instances	Array of CoordinatorNode objects	Definition List of CN details. Range N/A

**Table 3** CoordinatorNode
Parameter	Type	Description
id	String	Definition Node ID. Range N/A
name	String	Definition Node name. Range N/A
private_ip	String	Definition Private IP address. Range N/A

Example Requests

Query CN node list of a cluster.

GET https://{Endpoint}/v1.0/89cd04f168b84af6be287f71730fdb4b/clusters/4ca46bf1-5c61-48ff-b4f3-0ad4e5e3ba90/cns

Example Responses

Status code: 200

CN nodes of the cluster queried.

{
  "min_num" : 2,
  "max_num" : 3,
  "instances" : [ {
    "id" : "e07d1bfb-6eac-4827-96e0-d10b8ca29c41",
    "name" : "demo-dws-cn-cn-1-1",
    "private_ip" : "172.16.69.106"
  } ]
}

Status Codes

Status Code	Description
200	CN nodes of the cluster queried.
400	Request error.
401	Authentication failed.
403	You do not have required permissions.
404	No resources found.
500	Internal server error.
503	Service unavailable.