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, only cluster instances support node addition.
Method 1
- Log in to the GeminiDB console.
- In the service list, choose Databases > GeminiDB Redis API.
- On the Instances page, locate the instance you want to add nodes for and click its name.
- In the navigation pane, choose Node Management.
Figure 1 Node management
- 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.
- On the Scale Storage Space page, select your target storage capacity and click Next.
Figure 2 Storage change
- 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.
- For yearly/monthly instances
- After the storage capacity is expanded, go to 3 to add nodes again.
- 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.
- For yearly/monthly instances
Method 2
- Log in to the GeminiDB console.
- In the service list, choose Databases > GeminiDB Redis API.
- On the Instances page, locate the instance which you want to add nodes for, click its name, and choose
in the Operation column.Figure 3 Adding nodes
- 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.
- On the Scale Storage Space page, select your target storage capacity and click Next.
Figure 4 Storage change
- 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.
- For yearly/monthly instances
- After the storage is scaled up, go to 5 to add nodes again.
- 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.
- For yearly/monthly instances
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