Adding Nodes

Scenarios

This section describes how to add nodes to an instance to suit your service requirements. You can also delete a node as required. For details, see Deleting Nodes.

Precautions

• Adding nodes will trigger fast load balancing, which may cause a request timeout for a few seconds. Enable automatic retry for services.
• You can add nodes only when the instance status is Available or Checking restoration.
• An instance cannot be deleted when one or more nodes are being added.
• If the storage is insufficient, adding nodes is not supported. Expand the storage first. For details about the storage supported by instances of different specifications, see Instance Specifications.
• Nodes cannot be added if any node is stopped.
• Currently, nodes can be added only to cluster instances.
• Currently, a maximum of 36 nodes are supported. To obtain more nodes, choose Service Tickets > Create Service Ticket in the upper right corner of the console and contact customer service.

Method 1

1. Log in to the GeminiDB console.
2. In the service list, choose Databases > GeminiDB Redis API.
3. On the Instances page, locate the instance you want to add nodes for and click its name.
4. In the navigation pane, choose Node Management.
   Figure 1 Node management
   

5. Click Add Node, on the displayed page, specify the number of nodes to be added and view the storage of the instance.
   • If the storage is sufficient, click Next and go to 12.
   • If the storage is insufficient, click Next and go to 8.

   

   New nodes are of the same specifications as existing nodes. Once a new node is added, its specifications cannot be changed.

6. On the Scale Storage Space page, select your target storage capacity and click Next.
   Figure 2 Storage change
   

7. On the displayed page, confirm the storage space.
   • For yearly/monthly instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Next and complete the payment.
   • For pay-per-use instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit to scale up the storage space.

8. After the storage capacity is expanded, go to 3 to add nodes again.
9. On the displayed page, confirm the node configuration details.
   • For yearly/monthly instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit and complete the payment.
   • For pay-per-use instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit.

Method 2

1. Log in to the GeminiDB console.
2. In the service list, choose Databases > GeminiDB Redis API.
3. On the Instances page, locate the instance which you want to add nodes for, click its name, and choose More > Add Node in the Operation column.
   Figure 3 Adding nodes
   

4. On the Add Node page, specify the number of nodes to be added and view the storage of the instance.
   • If the storage capacity is sufficient, click Next and go to 8.
   • If the storage capacity is insufficient, click Next and go to 5.

   

   New nodes are of the same specifications as existing nodes. Once a new node is added, its specifications cannot be changed.

5. On the Scale Storage Space page, select your target storage capacity and click Next.
   Figure 4 Storage change
   

6. On the displayed page, confirm the storage space.
   • For yearly/monthly instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Next and complete the payment.
   • For pay-per-use instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit to scale up the storage space.

7. After the storage is scaled up, go to 5 to add nodes again.
8. On the displayed page, confirm the node configuration details.
   • For yearly/monthly instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit and complete the payment.
   • For pay-per-use instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit.