Help Center> Distributed Database Middleware> User Guide> Instance Management> Changing Node Class
Updated on 2024-04-01 GMT+08:00
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Changing Node Class

You can change CPUs or memory of your instance node based on service requirements. This section describes how to change the CPU or memory of a DDM instance node.

Precautions

  • Change node class during off-peak hours because services will be interrupted for a while during class changing.
  • After a read-only group is created, the entry for changing node class will be moved to the operation column of the group.
  • Once the change operation is performed, it cannot be undone. To change the class again, submit another request after the change is complete.
  • Node class can be upgraded or downgraded.

Procedure

  1. Log in to the DDM console.
  2. On the Instances page, locate the instance whose node class you want to change and click its name.
  3. Click Change.
  4. On the displayed page, select the required class.

    Figure 1 Selecting a node class

  5. Perform subsequent operations based on the instance's billing mode:

    • If the billing mode is Pay-per-use, click Submit.
    • If the billing mode is Yearly/Monthly, click Pay Now.

  6. Switch back to the instance list and check whether the instance status changes to Changing class. You can also view the change task at Task Center.
Parent topic: Instance Management