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Read Node Manage

Users can manage Read Node through the Samsung Cloud Platform Console.

Read Node status query

Users can view the server status and replication status of the Read Node via the Read Node Status View tab.

To view the Read Node status of the Scalable DB (DBaaS) service, follow these steps.

  1. Click the All Services > Database > Scalable DB(DBaaS) menu. Navigate to the Service Home page of Scalable DB(DBaaS).
  2. On the Service Home page, click the Scalable DB(DBaaS) menu. You will be taken to the Scalable DB(DBaaS) List page.
  3. Click the resource to view detailed information on the Scalable DB(DBaaS) List page. You will be taken to the Scalable DB(DBaaS) Details page.
  4. On the Scalable DB(DBaaS) Details page, click the Read Node Status tab.
  5. On the Read Node status query page, click the Status Query button.
  6. When the alert window appears, click the Confirm button. The query results will be displayed in the Read Node status list.
CategoryDetailed description
Read Node statusRead Node server status
  • You can view the server name, status query, status details, and status check time
  • While being queried, the cluster remains in the Synchronizing state, and once the query completes, the cluster changes to the Running state
Table. Read Node status view tab detailed information items

Configure Auto Scaling Policy

Users can add, modify, and delete Auto Scaling policies through the Auto Scalinng policy tab to manage the automatic scaling and shrinking of Read Nodes. Based on CPU utilization metrics, you can set the minimum and maximum number of Read Nodes, allowing flexible adjustment according to workload changes.

Add Auto Scaling policy

Caution

The Scailing policy allows only one policy each for Scale In and Scale Out.

  • If a pre‑created policy already exists, it cannot be added.

To add an Auto Scaling policy to the Scalable DB (DBaaS) service, follow these steps.

  1. Click the All Services > Database > Scalable DB(DBaaS) menu. Navigate to the Service Home page of Scalable DB(DBaaS).
  2. On the Service Home page, click the Scalable DB(DBaaS) menu. You will be taken to the Scalable DB(DBaaS) List page.
  3. Scalable DB(DBaaS) List Click the resource on the page to view detailed information. Scalable DB(DBaaS) Details You will be taken to the page.
  4. On the Scalable DB(DBaaS) Detail page, click the Auto Scaling Policy tab.
  5. On the Auto Scaling policy page, click the Add Policy button.
  6. When the policy addition window appears, click the Scale policy tab to create it.
    • If a pre‑created Scale policy exists, that tab is disabled and cannot be selected.
  7. Set the detailed items of the selected Scale policy and click the Confirm button.
  8. The added Scale policy is displayed in the list.

Modify Auto Scaling policy

Follow these steps to modify the Auto Scaling policy of the Scalable DB(DBaaS) service.

  1. Click the All Services > Database > Scalable DB(DBaaS) menu. Navigate to the Service Home page of Scalable DB(DBaaS).
  2. On the Service Home page, click the Scalable DB(DBaaS) menu. You will be taken to the Scalable DB(DBaaS) List page.
  3. Click the resource to view detailed information on the Scalable DB(DBaaS) List page. You will be taken to the Scalable DB(DBaaS) Details page.
  4. On the Scalable DB(DBaaS) Details page, click the Auto Scaling Policy tab.
  5. On the Auto Scaling policy page, click the Edit button for the policy you want to modify.
  6. When the policy edit window appears, modify the desired information and click the Confirm button.

Delete Auto Scaling policy

To delete the Auto Scaling policy of the Scalable DB (DBaaS) service, follow the steps below.

  1. Click the All Services > Database > Scalable DB(DBaaS) menu. Navigate to the Service Home page of Scalable DB(DBaaS).
  2. Click the Scalable DB(DBaaS) menu on the Service Home page. You will be taken to the Scalable DB(DBaaS) List page.
  3. Click the resource to view detailed information on the Scalable DB(DBaaS) List page. You will be taken to the Scalable DB(DBaaS) Details page.
  4. On the Scalable DB(DBaaS) Details page, click the Auto Scaling Policy tab.
  5. On the Auto Scaling policy page, select the policy to delete and click the Delete button.
  6. When the policy deletion is complete, it disappears from the list.

Add Read Node

When creating a Scalable DB(DBaaS) service, you can add a Read Node under the same conditions as the Primary Node settings you configured.

Caution
  • You can add nodes only when the cluster status is Running.
  • When creating a Scalable DB (DBaaS) service, you cannot add nodes if the configured maximum number of nodes has been reached.
  • If there is a Failed Node among the existing Read Nodes, you cannot add a node. Delete the Failed Node and then add the node again.

To add a Read Node to the Scalable DB (DBaaS) service, follow the steps below.

  1. Click the All Services > Database > Scalable DB(DBaaS) menu. Navigate to the Service Home page of Scalable DB(DBaaS).
  2. Click the Scalable DB(DBaaS) menu on the Service Home page. You will be taken to the Scalable DB(DBaaS) List page.
  3. Click the resource to view detailed information on the Scalable DB(DBaaS) List page. You will be taken to the Scalable DB(DBaaS) Details page.
  4. On the Scalable DB(DBaaS) Details page, click Additional Functions > Add Node. You will be taken to the Add Read Node page.
  5. Add Read Node Check the specifications on the page and click the Complete button.
    • If you need to assign an IP for the Read Node, please enter the IP in the Network > Server-specific Settings > IP field.

Delete Read Node

You can delete the Read Node of the Scalable DB (DBaaS) service.

Caution
  • Nodes can be deleted only when the cluster status is Running.
  • If you delete a node and the remaining number of nodes is less than the configured minimum, you cannot delete the node.

To delete the Read Node of the Scalable DB (DBaaS) service, follow the steps below.

  1. Click the All Services > Database > Scalable DB(DBaaS) menu. Navigate to the Service Home page of Scalable DB(DBaaS).
  2. Click the Scalable DB(DBaaS) menu on the Service Home page. Navigate to the Scalable DB(DBaaS) List page.
  3. Scalable DB(DBaaS) List Click the resource to view detailed information. Scalable DB(DBaaS) Details You will be taken to the page.
  4. Scalable DB(DBaaS) Details on the page, click Additional Functions > Delete Node.
  5. When the Delete dialog for Read Node appears, select the items to delete and click the Delete button.
  6. When the alert window appears, enter the name of the node to delete and click the Confirm button.
  7. Read Node In the delete dialog, verify that the selected node has been removed from the node list, and click the Confirm button.
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