Cluster

Available in VPC

The Cluster menu allows you to create and manage Search Engine clusters. Select from a variety of server types and storage capacities to create clusters and add data nodes. Also, you can change Kibana or OpenSearch Dashboards access password or change and manage SSH access authentication key.

Cluster page

The following is the basic description of the Cluster menu for using the Search Engine Service.

Create cluster

To create a cluster, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Click the [Create Cluster] button.
4. When the Create cluster page appears, proceed with the following steps in order.
   • 1. Set cluster
   • 2. Set Node
   • 3. Setting up authentication keys
   • 4. Final confirmation

1. Set cluster

Enter setting information for the cluster to be created.

1. Enter the cluster setting information.
   • Cluster name: enter the cluster name.
   • Search Engine version: select the Search Engine version
   • Enter the information according to the Search Engine version you selected
     • When Elasticsearch is selected
       • Kibana HTTP Port: enter the HTTP port of Kibana (9300, 9090 cannot be specified)
       • Kibana access permission: enter ID and password to use when accessing Kibana
         • Changing Kibana connection ID is not available later.
     • When OpenSearch is selected
       • Dashboard Port: enter the port input for OpenSearch Dashboards (9300, 9090 cannot be specified)
       • Search Engine access information: enter ID and password to use when accessing OpenSearch Dashboards and data
         • ID change is not available later.
2. Click the [Next] button.

2. Set Node

Set the nodes of the cluster to be created.

1. Enter the node setting information.

   • OS type: select OS of node server
   • VPC: select a VPC to install the node server into
     • : refresh the list of VPCs you have
     • [Create VPC] button: go to VPC Management menu where you can create a VPC
   • Manager node Subnet: select the subnet to install the manager node server into
     • Choose from subnets belonging to the selected VPC in VPC
     • : refresh the list of Subnet you have
     • [Create Subnet] button: go to Subnet Management menu where you can create Subnet
   • Manager node redundancy: manager node server redundancy if selected
   • Manager Node Server Type: select the manager node server type.
   • Enable master-only node: select whether to create a master-only node
     • When selected, the master-only node setting item is activated.
     • If not selected, the data node will act as the master node.
   • Master-only node subnet: select the subnet to install the master node server into
     • Choose from Private Subnet belonging to the selected VPC in VPC
     • : refresh the list of Subnet you have
     • [Create Subnet] button: go to Subnet Management menu where you can create Subnet
   • Number of master-only nodes: set the number of master-only nodes to 3 or 5 (default: 3)
   • Master Node Server Type: select the master node server type.
   • Data node Subnet: select the subnet to install the data node server into
     • Choose from Private Subnet belonging to the selected VPC in VPC
     • : refresh the list of Subnet you have
     • [Create Subnet] button: go to Subnet Management menu where you can create Subnet
   • Number of data nodes: set the number of data-only nodes from a minimum of 3 to a maximum of 10 (default: 3)
   • Data Node Server Type: select the data node server type
   • Data Node Storage Capacity (SSD): select the storage capacity per data node.
     • Use separate block storage rather than OS storage
     • Select from a minimum of 100 GB and a maximum of 2000 GB in increments of 10 GB
   • Pricing Plan: click Pricing information to go to Service introduction page where you can check the rate system of Search Engine Service.

2. Click the [Next] button.

3. Setting up authentication keys

Set the authentication key to use when accessing SSH to the manager node.

1. Select an existing authentication key or create a new one.
   • Using my own authentication key: select the authentication key to use
   • Create a new authentication key: enter the name of the authentication key and click the [Create and save authentication key] button to save the authentication key to the local PC.
2. Click the [Next] button.

4. Final confirmation

Confirm the settings and create the cluster.

1. After checking the settings, click the [Create cluster] button.
2. When a popup window appears during cluster creation, click the [OK] button.
   • When the creation is complete, the status of the server and cluster will show as Running.

View cluster information

To view the created cluster details, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Click on the target cluster to check the information.
   • Cluster name: the name of the cluster
   • Server status: node server status
   • Cluster status: cluster status. For more information, see Cluster status.
   • Search Engine Port: the HTTP port of the search engine.
   • Dashboard Port: Kibana or OpenSearch Dashboards access port
   • Search Engine version: the search engine version installed on your cluster
   • OS version: OS version installed on node server
   • VPC: the VPC in which the cluster is installed
   • Data node storage capacity: total capacity of data node storage
   • Manager node ACG, master node ACG, data node ACG: ACG set for each node
     • : go to the ACG menu where you can set ACG rules
     • [View rules] button: check the rules set in ACG
   • Manager node type, master node type, data node type: server type of each node
   • Cluster node list: click the [View details] button to check the list of nodes included in the cluster and their information
   • Authentication key: authentication key used when accessing SSH to the manager node
     • : display authentication key management popup window. For more information, see Manage authentication key.
     • [Shortcut] button: click to change the authentication key. For more information, see Change the authentication key for direct cluster access.
   • SSH access to the manager node: click the [Connection Guide] button to check the SSH access method to the managed node server. For more information, see SSH access to the manager node.
   • Manager node subnet, master node subnet, data node subnet: subnet where each node is installed
   • Number of manager nodes, number of master nodes, number of data nodes: number of each node
   • Creation Date: the date and time the cluster was created

Manage cluster

You can add data nodes to the cluster you created or change the password to access Kibana or OpenSearch Dashboards.

Add a data node

To add data nodes to the created cluster, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select a target cluster.
4. Click the [Manage Cluster] button, then click Add Data Node.
5. When the popup window for adding data nodes appears, click or to set the number of data nodes to add.
   • You cannot reduce data node, and you can add up to 10 at a time.
6. Click [OK].
7. When the Add a data node popup window appears, click the [OK] button.
   • The status of the server and cluster is displayed as Changing, and when the addition is complete, it is displayed as Running.

Change node disk size

To change the disk size of nodes in a created cluster, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select a target cluster.
4. Click the [Manage cluster] button, then click Change node disk size.
5. When the change node disk size popup window appears, enter the desired disk size for each node.
   • The input must be in increments of 10 GB.
6. Click [OK].
7. When the change node disk size popup window appears, click the [OK] button.
   • The status of the server and cluster is displayed as Changing, and when the change is complete, it is displayed as Running.

Reset connection password

To reset your Kibana or OpenSearch Dashboards access password, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select a target cluster.
4. Click the [Manage cluster] button, then click Reset connection password.
5. When the popup window for resetting the administrator password for access appears, enter the new password and enter the password again in Confirm Password.
6. Click [OK].
7. When the popup window for resetting the administrator password for access appears, click the [OK] button.

Change node specifications

If you need to change the specifications of Manager or Master or Data node during cluster operation, you can change the specifications of the node. You may upgrade the current CPU and memory specifications to a higher level, but lowering the specifications is not allowed.

To change the node specifications, follow these steps:

1. From NAVER Cloud Platform console, click Services > Big Data & Analytics > Search Engine Service in order.
2. After clicking the check box of the cluster to which you want to change the node specification, click Manage cluster > Change Node specifications.
3. When you see the node specification change window, select the node specification to change.
   • You can select the specifications of Manager, Master, and Data nodes respectively.
   • You cannot select a CPU or memory specification lower than the one currently in use.
4. Click [OK].
   • When the node specification change starts, the cluster's server status is displayed as Changing.
   • When the node specification change is completed, the cluster's server status is displayed as Running.

Manage server access

You can change the authentication key used for SSH access to the manager node server or delete authentication keys that are not applied to the service.

Change authentication key for direct cluster access

To change the authentication key used for SSH access to the manager node server, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select a target cluster.
4. Click the [Server Access Management] button, then click Change authentication key for direct cluster access.
   • You can also change the authentication key by clicking the [Shortcut] button of the authentication key item in the cluster details.
5. When the User confirmation popup window appears, enter the password for your NAVER Cloud Platform account and click the [OK] button.
6. When the Change authentication key popup window appears, click the [Send authentication mail] button.
7. When the Send confirmation mail popup window appears, click the [OK] button.
8. Enter the verification message sent to your registered email address and click the [OK] button.
9. Select an existing authentication key or create a new one.
   • Using my own authentication key: select the authentication key to use
   • Create a new authentication key: enter the name of the authentication key, and click the [Create and save authentication key] button to save the authentication key to the local PC.
10. Click [Edit authentication key].
11. Click [OK].

Manage authentication key

You can check and delete the authentication key you have.

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select any cluster.
4. Click the [Manage Server Access] button, then click Manage Authentication Key in order.
   • You can also manage the authentication key by clicking in the Authentication key item in the cluster details.
5. Check the authentication key you have in the authentication key management popup window, or click the [Delete] button in the Setting item to delete the authentication key.
6. Click [OK].
   • If you do not click the [OK] button, the authentication key will not be deleted.

Restart cluster

To restart clusters, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select the cluster to be restarted, then click the [Restart Cluster] button.
4. When the Restart cluster popup window appears, check the cluster and click the [OK] button.
5. When the Restart cluster popup window appears, click the [OK] button.

Delete cluster

To delete a created cluster, follow these steps:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to > Services > Big Data & Analytics > Search Engine Service in order.
2. Click the Cluster menu.
3. Select the cluster to delete, then click the [Delete] button.
4. When the Delete cluster popup window appears, check the cluster to be deleted and click the [Yes] button.
   • When deletion is complete, the cluster disappears from the list.