Help Center/ TaurusDB/ User Guide/ Multi-primary Instances (OBT)/ Adding Read/Write Nodes to a Multi-primary Instance
Updated on 2024-12-30 GMT+08:00
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Adding Read/Write Nodes to a Multi-primary Instance

A multi-primary instance can contain 2 to 63 read/write nodes. With those nodes, it enables write many read many to deliver excellent read/write performance at high concurrency.

You can add read/write nodes after a multi-primary instance is created.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and project.
  3. Click in the upper left corner of the page, choose Databases > TaurusDB.
  4. On the Instances page, locate a multi-primary instance and click Create Node in the Operation column.

    Alternatively, click the multi-primary instance name. On the Basic Information page, click in the upper right corner of the page and click Create Node.

  5. On the displayed page, set Read/Write Nodes.

    Each multi-primary instance can contain up to 63 read/write nodes.

  6. Click Next.
  7. Confirm the node settings.

    • If you need to modify the settings, click Previous.
    • If you do not need to modify the settings, click Submit.

  8. Check that the new read/write nodes are displayed in the Node List area of the Basic Information page. You can also change node names and reboot or delete those nodes.