Help Center/ Distributed Database Middleware/ User Guide (ME-Abu Dhabi Region)/ Instance Management/ Scaling In a DDM Instance
Updated on 2022-02-22 GMT+08:00
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Scaling In a DDM Instance

Scenarios

This section describes how to scale in a DDM instance as service data volume decreases.

  • Scale in your DDM instance during off-peak hours.
  • Make sure that the associated DB instance is normal and not undergoing other operations.

Procedure

If the read-only group function is not used, perform 1 to scale in your DDM instance.

If the read-only group function is used, perform 2 to scale in your DDM instance.

  1. Log in to the DDM console, in the instance list, locate the DDM instance that you want to scale in, and choose More > Scale In in the Operation column.
  2. On the DDM console, choose Instances in the navigation pane. In the instance list, locate the DDM instance that you want to scale out, and click its name. On the displayed Basic Information page, click Scale In at the Node Information area.
  3. On the displayed page, view the current instance configuration and specify the number of nodes to be removed.

    At least one node should be left for a DDM instance.

  4. Click Next.
  5. On the displayed page, click Submit if all configurations are correct.

    After the scaling task is submitted, the instance status changes to Scaling in.

Parent topic: Instance Management