---
title: "Change node spec"
slug: "analytics-vpcsearchengine-cluster-changespecnode"
updated: 2026-09-17T09:50:01Z
published: 2026-09-17T09:50:01Z
canonical: "api.ncloud-docs.com/analytics-vpcsearchengine-cluster-changespecnode"
---

> ## 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.

# Change node spec

Available in VPC

Change search engine cluster node server specifications.

## Request

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

| Method | URI |
| --- | --- |
| POST | /api/v2/cluster/changeSpecNode/{serviceGroupInstanceNo} (Korea Region) |
| POST | /api/sgn-v2/cluster/changeSpecNode/{serviceGroupInstanceNo} (Singapore Region) |
| POST | /api/jpn-v2/cluster/changeSpecNode/{serviceGroupInstanceNo} (Japan Region) |

### Request headers

For information about the headers common to all Search Engine Service APIs, see [Search Engine Service request headers](/docs/en/analytics-vpcsearchengine#%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-vpcsearchengine-cluster-getclusterinfolist). |

### Request body

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

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `managerNodeProductCode` | String | Conditional | Master node server type code - See Get changeable node spec ([G2](/docs/en/analytics-vpcsearchengine-cluster-productlistforspecchange)/[G3](/docs/en/ses-getserverspeclistforspecchange)). - One or more of the three nodes must be entered. |
| `dataNodeProductCode` | String | Conditional | Data node server type code - See Get changeable node spec ([G2](/docs/en/analytics-vpcsearchengine-cluster-productlistforspecchange)/[G3](/docs/en/ses-getserverspeclistforspecchange)). - One or more of the three nodes must be entered. |
| `masterNodeProductCode` | String | Conditional | Master node server type code - See Get changeable node spec ([G2](/docs/en/analytics-vpcsearchengine-cluster-productlistforspecchange)/[G3](/docs/en/ses-getserverspeclistforspecchange)). - One or more of the three nodes must be entered. |

### Request example

The request example is as follows:

```
curl --location --request POST 'https://vpcsearchengine.apigw.ntruss.com/api/v2/cluster/changeSpecNode/1037*****' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}' \
--header 'Content-Type: application/json' \
--data '{
   "managerNodeProductCode" : "SVR.VELST.STAND.C008.M032.NET.SSD.B050.G002",
   "dataNodeProductCode" : "SVR.VELST.HIMEM.C002.M016.NET.SSD.B050.G002",
   "masterNodeProductCode": "SVR.VELST.STAND.C008.M032.NET.SSD.B050.G002"
}'
```

## 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` | Object | - | Response result |
| `result.isAllPossible` | Boolean | - | Spec change success status - `true` \| `false` - `true`: succeeded - `false`: failed |
| `requestId` | String | - | ID for the request - UUID format |

### Response status codes

For response status codes common to all Search Engine Service APIs, see [Search Engine Service response status codes](/docs/en/analytics-vpcsearchengine#%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": {
        "isAllPossible": true
    },
    "requestId": "c6a60a96-****-****-****-f8529c4148c5"
}
```