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ApsaraDB RDS:Add a node to an ApsaraDB RDS for MySQL cluster

Last Updated:Nov 01, 2023

This topic describes how to add a node to an ApsaraDB RDS for MySQL cluster.


  • An RDS cluster is created.

  • The RDS cluster is in the Running state.

Background information

  • When you add a node to an RDS cluster, the read and write requests of the RDS cluster are not affected.

  • After you add a node, you can specify a weight for the node. This way, the system distributes requests to the node based on the specified weight to implement load balancing.

  • An RDS cluster consists of up to one primary node and eight secondary nodes.

Billing rules

For more information about the billing rules after nodes are added, see Specification changes.


  1. Go to the Instances page. In the top navigation bar, select the region in which the RDS instance resides. Then, find the RDS instance and click the ID of the instance.
  2. In the Instance Topology Management section, click Add or Delete Node.

  3. In the dialog box that appears, select Add Node and click Next step.

  4. In the Node section, click the 增加 icon or Add Node to select a zone for the node.


    If you want to cancel the addition operation, click the 减号 icon to the left of the node.

  5. Read and select Terms of Service and click Pay Now.

Related operations




Adds a node to a cluster.