Adding Nodes

Precautions

• Adding nodes may lead to the decrease of operations per second (OPS). Perform this operation during off-peak hours.
• You can only add nodes when the instance status is Available or Checking restoration.
• Instances that one or more nodes are added to cannot be deleted.
• You can also delete nodes as required. For details, see Deleting Nodes.

Method 1

1. Log in to the GeminiDB console.
2. In the service list, choose Databases > GeminiDB Cassandra API.
3. On the Instances page, locate the instance that you want to add nodes to and click its name.
4. In the Node Information area on the Basic Information page, click Add Node.
   Figure 1 Node information
   

5. Specify Add Nodes and click Next.
   Figure 2 Adding nodes
   
   

   • New nodes are of the same specifications as existing nodes. Once a new node is added, its specifications cannot be changed.
   • New nodes and the instance can be in different subnets of the same VPC.

6. On the displayed page, confirm the node configurations.
   • 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.

7. View the results.
   • When new nodes are being added, the instance status is Adding node.
   • After the nodes are added, the instance status becomes Available.
   • Click the instance name. In the Node Information area on the Basic Information page, view information about the new nodes.

Method 2

1. Log in to the GeminiDB console.
2. In the service list, choose Databases > GeminiDB Cassandra API.
3. On the Instance Management page, locate the instance you want to add nodes for and choose More > Add Node in the Operation column.
   Figure 3 Adding nodes
   

4. Specify Add Nodes and click Next.
   Figure 4 Adding nodes
   
   

   • New nodes are of the same specifications as existing nodes. Once a new node is added, its specifications cannot be changed.
   • New nodes and the instance can be in different subnets of the same VPC.

5. On the displayed page, confirm the node configurations.
   • 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.

6. View the results.
   • When new nodes are being added, the instance status is Adding node.
   • After the nodes are added, the instance status becomes Available.
   • Click the instance name. In the Node Information area on the Basic Information page, view information about the new nodes.