--- title: "Getting started" slug: "hadoop-chadoop-2-1" updated: 2026-09-17T09:18:03Z published: 2026-09-17T09:18:03Z canonical: "guide.ncloud-docs.com/hadoop-chadoop-2-1" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # Getting started Available in Classic Once you've reviewed the Cloud Hadoop specifications, and quickstart, you're ready to start using the service. Your first step is creating a Cloud Hadoop cluster. You can create and manage Cloud Hadoop clusters from the NAVER Cloud Platform console. The following summarizes what you can learn from this guide: - [Preliminary task](/docs/en/hadoop-chadoop-2-1#%EC%82%AC%EC%A0%84-%EC%9E%91%EC%97%85) - [Create cluster](/docs/en/hadoop-chadoop-2-1#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EC%83%9D%EC%84%B1) - [Delete cluster](/docs/en/hadoop-chadoop-2-1#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EC%82%AD%EC%A0%9C) ## Preliminary task 1. **Create Object Storage.** Before creating a cluster, you must have created an Object Storage bucket for storing and searching data. For more information, see [Object Storage guides](/docs/en/storage-storage-6-1). 2. **Select a node type.** Consider the expected usage and select a node type in advance. ## Create cluster To use NAVER Cloud Platform's Cloud Hadoop, you must create a cluster first. To create a Cloud Hadoop cluster: 1. Access the NAVER Cloud Platform console. 2. In the top-right corner, click **Region & Platform**. 3. Select your region and **Classic** platform, and then click **[Apply]**. 4. In the top-left corner, click **Menu**. 5. Navigate to **Services > Big Data & Analytics > Cloud Hadoop**. 6. Click **[Create cluster]**. 7. When the Create cluster page appears, proceed with the following steps in order: - [1. Set up a cluster](/docs/en/hadoop-chadoop-2-1#1-%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EC%84%A4%EC%A0%95) - [2. Set storage and server](/docs/en/hadoop-chadoop-2-1#2-%EC%8A%A4%ED%86%A0%EB%A6%AC%EC%A7%80-%EC%84%9C%EB%B2%84-%EC%84%A4%EC%A0%95) - [3. Set authentication key](/docs/en/hadoop-chadoop-2-1#3-%EC%9D%B8%EC%A6%9D%ED%82%A4-%EC%84%A4%EC%A0%95) - [4. Final confirmation](/docs/en/hadoop-chadoop-2-1#4-%EC%B5%9C%EC%A2%85-%ED%99%95%EC%9D%B8) ### 1. Set up a cluster Specify the cluster settings information and then click **[Next]**. - **Cluster version**: Currently, Cloud Hadoop 1.0, 1.1 and 1.2 are available. For more information on cluster versions, see [Cloud Hadoop release notes](/docs/en/cloudhadoop-release). - **Cluster type**: There are currently four cluster types: Core Hadoop, Presto, HBase, and Spark. You can select a type with the components you need pre-installed. If you need to add necessary services, you can use the **Add Service** feature in [Ambari](https://ambari.apache.org/), which is a cluster managing tool. - **Cluster admin account**: Set the cluster account for accessing the management console of Ambari, Hue, and Zeppelin. - **Cluster admin account password**: Enter the cluster admin account's password. - **Set ACG**: Cloud Hadoop ACG is automatically created whenever you create a cluster. To set up network ACLs, you can select an automatically generated ACG and modify the rules. For more information on the ACG settings, see [Firewall settings (ACG)](/docs/en/server-acg-classic). ### 2. Set storage and server After specifying the storage and node server settings information, click **[Next]**. - **Object Storage bucket**: You can read and write data from the Object Storage bucket that you created in a [preliminary task](/docs/en/hadoop-chadoop-2-1#%EC%82%AC%EC%A0%84-%EC%9E%91%EC%97%85). When creating a cluster, select the Object Storage bucket created in a [preliminary task](/docs/en/hadoop-chadoop-2-1#%EC%82%AC%EC%A0%84-%EC%9E%91%EC%97%85). Locked buckets cannot be integrated with Cloud Hadoop. Keep this in mind when creating an Object Storage bucket. - **Support high availability**: Cloud Hadoop basically provides redundancy for HDFS Namenode, YARN Resource Manager, Oozie Server, and HiveServer. Since this is the specification that is required as a minimum, it cannot be deselected. - **Edge node server type**: Select a server type to use as a edge node. The server type can't be changed after the cluster is created. For the specifications of servers that can be used as edge nodes, see [Supported server specifications by cluster node](/docs/en/cloudhadoop-prep#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EB%85%B8%EB%93%9C%EB%B3%84-%EC%A7%80%EC%9B%90-%EC%84%9C%EB%B2%84-%EC%82%AC%EC%96%91). - **Number of edge nodes**: The number of edge nodes is fixed at 1. - **Master node server type**: Select a server type to use as a master node. The server type can't be changed after the cluster is created. - **Number of master nodes**: Since Cloud Hadoop provides high availability as the minimum specifications, the number of master nodes is fixed at 2. - **Master node storage type**: Select a storage type. You can select between SSD and HDD. You cannot change the storage type after you create a cluster. For the specifications of servers that can be used as master nodes, see [Supported server specifications by cluster node](/docs/en/cloudhadoop-prep#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EB%85%B8%EB%93%9C%EB%B3%84-%EC%A7%80%EC%9B%90-%EC%84%9C%EB%B2%84-%EC%82%AC%EC%96%91). - **Master node storage capacity**: Select the storage capacity. You can select from 100 GB to 2 TB, and adjust in 10 GB increments. - **Worker node server type**: Select a server type to use as a worker node. The server type can't be changed after the cluster is created. For specifications of servers that can be used as operator nodes, see [Supported server specifications by cluster node](/docs/en/cloudhadoop-prep#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EB%85%B8%EB%93%9C%EB%B3%84-%EC%A7%80%EC%9B%90-%EC%84%9C%EB%B2%84-%EC%82%AC%EC%96%91). - **Number of worker nodes**: You can select 2-8 worker nodes. Worker nodes can be added or deleted even after the cluster is created. - **Worker node storage type**: Select a storage type. You can select between SSD and HDD. You cannot change the storage type after you create a cluster. - **Worker node storage capacity**: Select the storage capacity. You can select from 100 GB to 2 TB, and adjust in 10 GB increments. - **Pricing plan**: The pricing plan you selected when you created your account applies. For more pricing information, see [Pricing information](https://www.ncloud.com/product/analytics/cloudHadoop). Note After a cluster is created, server specifications cannot be adjusted (scaled up/down). When configuring a cluster, make your selections taking into account the expected usage and node roles (edge/master/worker). ### 3. Set authentication key Set the SSH authentication key required for accessing the node yourself. Select an authentication key you have or create a new one and click **[Next]**. - To create a new authentication key, select **Create new authentication key**, enter the authentication key name, and click **[Create and save authentication key]**. Note The authentication key is required to verify the admin password. Keep the saved .pem file in a safe location on your PC. ### 4. Final confirmation Check the details and click **[Create]**. Note - Cloud Hadoop ACG is automatically created whenever you create a cluster. To set up network ACLs, you can select an automatically generated ACG and modify the rules. For more information on the ACG settings, see [Firewall settings (ACG)](/docs/en/server-acg-classic). - It takes approximately 30 to 50 minutes for a cluster to be created. Once the cluster is created and it starts running, you can see **Running** displayed in the Status column of the cluster list. ## Delete cluster To delete a Cloud Hadoop cluster: 1. In the Classic environment of the NAVER Cloud Platform console, navigate to **Menu** > **All Services > Big Data & Analytics > Cloud Hadoop**. 2. Select the cluster to delete from the cluster list, and then click **[Delete]**. 3. Enter the cluster name on the popup window to confirm deletion, and then click **[Yes]**. Note It takes several minutes to delete a cluster. Once deleted, the cluster disappears from the cluster list. Caution If you delete a Cloud Hadoop cluster, the data saved in the node's local file system or HDFS will all be deleted as well. Back up the necessary files, for example, by copying them into the Object Storage bucket. ## Delete Object Storage file or bucket Select the file to delete from the Object Storage console and click **[Edit] > Delete**. For more information on deleting Object Storage files or buckets, see [Object Storage user guides](/docs/en/storage-storage-6-1#%EC%82%AC%EC%9A%A9%ED%95%98%EA%B8%B0-%EC%A0%84%EC%97%90classic). Caution Deleted Object Storage files or buckets cannot be restored. Consider carefully before proceeding.