changeCloudHadoopNodeCount

Available in VPC

Change the number of worker nodes in a Cloud Hadoop cluster.

Syntax

The changeCloudHadoopNodeCount syntax is as follows:

./ncloud vhadoop changeCloudHadoopNodeCount \
    --cloudHadoopInstanceNo <cloud-hadoop-instance-no> \
    --workerNodeCount <worker-node-count> \
    [--regionCode <KR|SGN|JPN>] \
    [--output <json|xml>]

Options

This section describes the options available when running changeCloudHadoopNodeCount.

Required options

The following options are required for changeCloudHadoopNodeCount.

Options	Type	Required	Description
`--cloudHadoopInstanceNo`	String	Required	Cluster instance number See getCloudHadoopInstanceList.
`--workerNodeCount`	Integer	Required	Number of worker nodes Up to `10` can be added at a time. To add `11` or more, call multiple times. No limit on the number of nodes that can be deleted.

Common options

For information about the options common to all vhadoop subcommands, see Cloud Hadoop (VPC) options.

Examples

If the request to change the number of Cloud Hadoop worker nodes is successful, the cluster's configuration information and the status of the change are returned.

Command

The command example is as follows:

./ncloud vhadoop changeCloudHadoopNodeCount \
    --cloudHadoopInstanceNo 34567890 \
    --workerNodeCount 3 \
    --regionCode KR \
    --output json

Output

The output example is as follows:

{
  "changeCloudHadoopNodeCountResponse": {
    "totalRows": 1,
    "cloudHadoopInstanceList": [
      {
        "cloudHadoopInstanceNo": "34567890",
        "cloudHadoopClusterName": "cluster-01",
        "cloudHadoopInstanceStatusName": "settingUp",
        "cloudHadoopInstanceStatus": {
          "code": "CREAT",
          "codeName": "CLOUD DATABASE (VPC) Created status"
        },
        "cloudHadoopInstanceOperation": {
          "code": "SETUP",
          "codeName": "CLOUD DATABASE(VPC) Setup OP"
        },
        "cloudHadoopClusterType": {
          "code": "CORE_HADOOP_WITH_SPARK",
          "codeName": "Core Hadoop with Spark : HDFS(3.1.1), YARN(3.1.1), Zookeeper(3.4.9), Ranger(2.0.0), HIVE(3.1.2), Hue(4.8.0), Zeppelin Notebook(0.11.2), Spark (2.4.8)"
        },
        "cloudHadoopVersion": {
          "code": "HADOOP2.2",
          "codeName": "Cloud Hadoop 2.2"
        },
        "cloudHadoopAddOnList": [],
        "ambariServerHost": "e-001-cluster-01-9d5z-hd",
        "clusterDirectAccessAccount": "sshuser",
        "loginKey": "test-key",
        "objectStorageBucket": "my-test-bucket",
        "cloudHadoopImageProductCode": "SW.VCHDP.OS.LNX64.ROCKY.0810.HDP.B050",
        "isHa": true,
        "createDate": "2026-07-06T13:58:52+0900",
        "domain": "pub-a1b2c3.hadoop.ntruss.com",
        "useDataCatalog": false,
        "accessControlGroupNoList": [
          "67890123"
        ],
        "cloudHadoopServerInstanceList": [
          {
            "cloudHadoopServerInstanceNo": "45678901",
            "cloudHadoopServerName": "e-001-cluster-01-9d5z-hd",
            "cloudHadoopServerRole": {
              "code": "E",
              "codeName": "Edge Node"
            },
            "cloudHadoopServerInstanceStatusName": "running",
            "cloudHadoopServerInstanceStatus": {
              "code": "RUN",
              "codeName": "CLOUD DATABASE (VPC) server Running status"
            },
            "cloudHadoopServerInstanceOperation": {
              "code": "NOOP",
              "codeName": "CLOUD DATABASE (VPC) server null OP"
            },
            "cloudHadoopProductCode": "SVR.VCHDP.EDGND.STAND.C004.M016.NET.HDD.B050.G002",
            "regionCode": "KR",
            "zoneCode": "KR-2",
            "vpcNo": "12345678",
            "vpcName": "vpc-01",
            "subnetNo": "23456789",
            "subnetName": "public-subnet",
            "privateIp": "10.0.1.6",
            "isPublicSubnet": true,
            "dataStorageSize": 107374182400,
            "cpuCount": 4,
            "memorySize": 17179869184,
            "uptime": "2026-07-06T14:04:41+0900",
            "createDate": "2026-07-06T13:58:52+0900"
          },
          {
            "cloudHadoopServerInstanceNo": "45678902",
            "cloudHadoopServerName": "m-001-cluster-01-9d5x-hd",
            "cloudHadoopServerRole": {
              "code": "M",
              "codeName": "Master Node"
            },
            "cloudHadoopServerInstanceStatusName": "running",
            "cloudHadoopServerInstanceStatus": {
              "code": "RUN",
              "codeName": "CLOUD DATABASE (VPC) server Running status"
            },
            "cloudHadoopServerInstanceOperation": {
              "code": "NOOP",
              "codeName": "CLOUD DATABASE (VPC) server null OP"
            },
            "cloudHadoopProductCode": "SVR.VCHDP.MSTDT.STAND.C004.M016.NET.HDD.B050.G002",
            "regionCode": "KR",
            "zoneCode": "KR-2",
            "vpcNo": "12345678",
            "vpcName": "vpc-01",
            "subnetNo": "23456790",
            "subnetName": "private-subnet",
            "privateIp": "10.0.2.6",
            "isPublicSubnet": false,
            "dataStorageType": {
              "code": "SSD",
              "codeName": "SSD"
            },
            "dataStorageSize": 107374182400,
            "cpuCount": 4,
            "memorySize": 17179869184,
            "uptime": "2026-07-06T14:04:20+0900",
            "createDate": "2026-07-06T13:58:52+0900"
          },
          {
            "cloudHadoopServerInstanceNo": "45678903",
            "cloudHadoopServerName": "m-002-cluster-01-9d5y-hd",
            "cloudHadoopServerRole": {
              "code": "M",
              "codeName": "Master Node"
            },
            "cloudHadoopServerInstanceStatusName": "running",
            "cloudHadoopServerInstanceStatus": {
              "code": "RUN",
              "codeName": "CLOUD DATABASE (VPC) server Running status"
            },
            "cloudHadoopServerInstanceOperation": {
              "code": "NOOP",
              "codeName": "CLOUD DATABASE (VPC) server null OP"
            },
            "cloudHadoopProductCode": "SVR.VCHDP.MSTDT.STAND.C004.M016.NET.HDD.B050.G002",
            "regionCode": "KR",
            "zoneCode": "KR-2",
            "vpcNo": "12345678",
            "vpcName": "vpc-01",
            "subnetNo": "23456790",
            "subnetName": "private-subnet",
            "privateIp": "10.0.2.7",
            "isPublicSubnet": false,
            "dataStorageType": {
              "code": "SSD",
              "codeName": "SSD"
            },
            "dataStorageSize": 107374182400,
            "cpuCount": 4,
            "memorySize": 17179869184,
            "uptime": "2026-07-06T14:04:47+0900",
            "createDate": "2026-07-06T13:58:52+0900"
          },
          {
            "cloudHadoopServerInstanceNo": "45678904",
            "cloudHadoopServerName": "d-001-cluster-01-9d60-hd",
            "cloudHadoopServerRole": {
              "code": "D",
              "codeName": "Data Node"
            },
            "cloudHadoopServerInstanceStatusName": "running",
            "cloudHadoopServerInstanceStatus": {
              "code": "RUN",
              "codeName": "CLOUD DATABASE (VPC) server Running status"
            },
            "cloudHadoopServerInstanceOperation": {
              "code": "NOOP",
              "codeName": "CLOUD DATABASE (VPC) server null OP"
            },
            "cloudHadoopProductCode": "SVR.VCHDP.MSTDT.STAND.C004.M016.NET.HDD.B050.G002",
            "regionCode": "KR",
            "zoneCode": "KR-2",
            "vpcNo": "12345678",
            "vpcName": "vpc-01",
            "subnetNo": "23456790",
            "subnetName": "private-subnet",
            "privateIp": "10.0.2.8",
            "isPublicSubnet": false,
            "dataStorageType": {
              "code": "SSD",
              "codeName": "SSD"
            },
            "dataStorageSize": 107374182400,
            "cpuCount": 4,
            "memorySize": 17179869184,
            "uptime": "2026-07-06T14:04:28+0900",
            "createDate": "2026-07-06T13:58:52+0900"
          },
          {
            "cloudHadoopServerInstanceNo": "45678905",
            "cloudHadoopServerName": "d-002-cluster-01-9d61-hd",
            "cloudHadoopServerRole": {
              "code": "D",
              "codeName": "Data Node"
            },
            "cloudHadoopServerInstanceStatusName": "running",
            "cloudHadoopServerInstanceStatus": {
              "code": "RUN",
              "codeName": "CLOUD DATABASE (VPC) server Running status"
            },
            "cloudHadoopServerInstanceOperation": {
              "code": "NOOP",
              "codeName": "CLOUD DATABASE (VPC) server null OP"
            },
            "cloudHadoopProductCode": "SVR.VCHDP.MSTDT.STAND.C004.M016.NET.HDD.B050.G002",
            "regionCode": "KR",
            "zoneCode": "KR-2",
            "vpcNo": "12345678",
            "vpcName": "vpc-01",
            "subnetNo": "23456790",
            "subnetName": "private-subnet",
            "privateIp": "10.0.2.9",
            "isPublicSubnet": false,
            "dataStorageType": {
              "code": "SSD",
              "codeName": "SSD"
            },
            "dataStorageSize": 107374182400,
            "cpuCount": 4,
            "memorySize": 17179869184,
            "uptime": "2026-07-06T14:04:28+0900",
            "createDate": "2026-07-06T13:58:52+0900"
          },
          {
            "cloudHadoopServerName": "d-003-cluster-01-9d9s-hd",
            "cloudHadoopServerRole": {
              "code": "D",
              "codeName": "Data Node"
            },
            "cloudHadoopServerInstanceStatusName": "creating",
            "cloudHadoopServerInstanceStatus": {
              "code": "PEND",
              "codeName": "CLOUD DATABASE (VPC) server Pending status"
            },
            "cloudHadoopServerInstanceOperation": {
              "code": "CREAT",
              "codeName": "CLOUD DATABASE (VPC) server Create OP"
            },
            "cloudHadoopProductCode": "SVR.VCHDP.MSTDT.STAND.C004.M016.NET.HDD.B050.G002",
            "regionCode": "KR",
            "zoneCode": "KR-2",
            "vpcNo": "12345678",
            "vpcName": "vpc-01",
            "subnetNo": "23456790",
            "subnetName": "private-subnet",
            "isPublicSubnet": false,
            "dataStorageType": {
              "code": "SSD",
              "codeName": "SSD"
            },
            "dataStorageSize": 107374182400,
            "cpuCount": 4,
            "memorySize": 17179869184,
            "uptime": "2026-07-06T14:04:28+0900",
            "createDate": "2026-07-06T15:18:05+0900"
          }
        ]
      }
    ],
    "requestId": "d4e5f607-b8c9-a123-def0-456789a12345",
    "returnCode": "0",
    "returnMessage": "success"
  }
}