Adding Dedicated Master and Client Nodes

Function

This API is used to add dedicated master and client nodes to an existing cluster that previously does not have such nodes.

Calling Method

For details, see Calling APIs.

URI

POST /v1.0/{project_id}/clusters/{cluster_id}/type/{type}/independent

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID and name, see Obtaining a Project ID and Name.
cluster_id	Yes	String	ID of the cluster that needs an independent master or client.
type	Yes	String	Node type. The value can be: ess-master: Master node ess-client: Client node

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
type	Yes	IndependentBodyReq object	Master/Client request body parameter.

**Table 3** IndependentBodyReq
Parameter	Mandatory	Type	Description
flavor_ref	Yes	String	Flavor ID. You can obtain the value of this parameter by calling the API Obtaining the Instance Specifications List. Select the flavor ID suitable for your cluster version.
node_size	Yes	Integer	Number of nodes. If the node type is ess-master, the number of nodes must be an odd number in the range 3 to 10. If the node type is ess-client, the number of nodes must be in the range 1 to 32.
volume_type	Yes	String	Node storage type. Its value can be ULTRAHIGH, COMMON, or HIGH.

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
id	String	Cluster ID.

Example Requests

Add dedicated master and client nodes.

POST /v1.0/6204a5bd270343b5885144cf9c8c158d/clusters/ea244205-d641-45d9-9dcb-ab2236bcd07e/type/ess-client/independent

{
  "type" : {
    "flavor_ref" : "d9dc06ae-b9c4-4ef4-acd8-953ef4205e27",
    "node_size" : 3,
    "volume_type" : "COMMON"
  }
}

Example Responses

Status code: 200

Request succeeded.

{
  "id" : "320afa24-ff2a-4f44-8460-6ba95e512ad4"
}

Status Codes

Status Code	Description
200	Request succeeded.
403	The request was rejected. The server has received the request and understood it, but the server refuses to respond to it. The client should not repeat the request without modifications.
500	The server is able to receive but unable to understand the request.