---
title: "Add node"
slug: "analytics-clouddatastreamingservice-cluster-changecountofbrokernode"
updated: 2026-09-17T09:51:28Z
published: 2026-09-17T09:51:28Z
canonical: "api.ncloud-docs.com/analytics-clouddatastreamingservice-cluster-changecountofbrokernode"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Add node

Available in VPC

Add a broker node to a Cloud Data Streaming Service cluster.

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| POST | /api/v1/cluster/changeCountOfBrokerNode/{serviceGroupInstanceNo} (Korea Region) |
| POST | /api/sgn-v1/cluster/changeCountOfBrokerNode/{serviceGroupInstanceNo} (Singapore Region) |
| POST | /api/jpn-v1/cluster/changeCountOfBrokerNode/{serviceGroupInstanceNo} (Japan Region) |

### Request headers

For information about the headers common to all Cloud Data Streaming Service APIs, see [Cloud Data Streaming Service request headers](/docs/en/analytics-clouddatastreamingservice#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request path parameters

You can use the following path parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `serviceGroupInstanceNo` | Integer | Required | Cluster instance number - See [Get cluster list](/docs/en/analytics-clouddatastreamingservice-cluster-getclusterinfolist). |

### Request body

You can include the following data in the body of your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `newBrokerNodeCount` | Integer | Required | Number of broker nodes to add - 1-10 |

### Request example

The request example is as follows:

```
curl --location --request POST 'https://clouddatastreamingservice.apigw.ntruss.com/api/v1/cluster/changeCountOfBrokerNode/1009*****' \
--header 'Content-Type: application/json' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}' \
--data '{
    "newBrokerNodeCount": 2
}'
```

## Response

This section describes the response format.

### Response body

The response body includes the following data:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `code` | Integer | - | Response code |
| `message` | String | - | Response message |
| `result` | Boolean | - | Response result - `true` \| `null` - `true`: succeeded - `null`: failed |
| `requestId` | String | - | ID for the request - UUID format |

### Response status codes

For information about the HTTP status codes common to all Cloud Data Streaming Service APIs, see [Cloud Data Streaming Service response status codes](/docs/en/analytics-clouddatastreamingservice#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The response example is as follows:

```
{
    "code": 0,
    "message": "SUCCESS",
    "result": true,
    "requestId": "4719b513-****-****-****-b08b10d048f9"
}
```