Creating an MRS Cluster

Updated on 2022-11-18 GMT+08:00

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Scenario

This section describes how to create an MRS analysis cluster using APIs. For details on how to call APIs, see Making an API Request.

Constraints

A VPC and subnet have been created using the VPC service in the region where the cluster is to be created. For details about how to create a VPC, see Querying VPCs and Creating a VPC. For details about how to create a subnet, see Querying Subnets and Creating a Subnet.
You have obtained the region and AZ information of the cluster to be created. For details, see Endpoints.
You have obtained the project ID of the region where the cluster is to be created. For details, see Obtaining a Project ID.
You have determined the version of the cluster to be created and the components supported by the version.
In this example, an analysis cluster is created based on the pay-per-use billing mode.

Procedure

API
URI format: POST /v2/{project_id}/clusters

For details, see Creating a Cluster.

Example request

POST: https://{endpoint}/v2/{project_id}/clusters

For details about {endpoint}, see Endpoints.
For details about {project_id}, see Obtaining a Project ID.
Obtain the value of node_size from the cluster creation page on the MRS console.

Request body:

{
  "cluster_version": "MRS 3.1.0",
  "cluster_name": "mrs_Demo",
  "cluster_type": "ANALYSIS",
  "charge_info": {
	  "charge_mode": "postPaid"
  },
  "region": "",
  "availability_zone": "",
  "vpc_name": "vpc-37cd",
  "subnet_name": "subnet-ed99",
  "components": "Hadoop,Spark2x,HBase,Hive,Hue,Flink,Oozie,Ranger,Tez",
  "safe_mode": "KERBEROS",
  "manager_admin_password": "Mrs@1234",
  "login_mode": "PASSWORD",
  "node_root_password": "Mrs@1234",
  "log_collection": 1,
  "mrs_ecs_default_agency": "MRS_ECS_DEFAULT_AGENCY",
  "tags": [
    {
      "key": "tag1",
      "value": "111"
    },
    {
      "key": "tag2",
      "value": "222"
    }
  ], 
  "node_groups": [
    {
      "group_name": "master_node_default_group",
      "node_num": 2,
      "node_size": "rc3.4xlarge.4.linux.bigdata",
      "root_volume": {
        "type": "SAS",
        "size": 480
      },
      "data_volume": {
        "type": "SAS",
        "size": 600
      },
      "data_volume_count": 1
    },
   {
      "group_name": "core_node_analysis_group",
      "node_num": 3,
      "node_size": "rc3.4xlarge.4.linux.bigdata",
      "root_volume": {
        "type": "SAS",
        "size": 480
      },
      "data_volume": {
        "type": "SAS",
        "size": 600
      },
      "data_volume_count": 1
    },
    {
      "group_name": "task_node_analysis_group",
      "node_num": 3,
      "node_size": "rc3.4xlarge.4.linux.bigdata",
      "root_volume": {
        "type": "SAS",
        "size": 480
      },
      "data_volume": {
        "type": "SAS",
        "size": 600
      },
      "data_volume_count": 1,
	 "auto_scaling_policy": {
                "auto_scaling_enable": true,
                "min_capacity": 0,
                "max_capacity": 1,
                "resources_plans": [],
                "exec_scripts": [],
                "rules": [
                    {
                        "name": "default-expand-1",
                        "description": "",
                        "adjustment_type": "scale_out",
                        "cool_down_minutes": 5,
                        "scaling_adjustment": "1",
                        "trigger": {
                            "metric_id": 2003,
                            "metric_name": "StormSlotAvailablePercentage",
                            "metric_value": 100,
                            "comparison_operator_id": 2003,
                            "comparison_operator": "LTOE",
                            "evaluation_periods": "1"
                        }
                    }
                ]
            }
    }
  ]
}

For details about the parameters, see Creating a Cluster.

Example response

{
	"cluster_id": "da1592c2-bb7e-468d-9ac9-83246e95447a"
}

Parent topic: Application Cases

Previous topic: Application Cases

Next topic: Scaling Out a Cluster

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