Help Center/ TaurusDB/ User Guide/ Multi-primary Instances (OBT)/ Adding Read/Write Nodes to a Multi-primary Instance
Updated on 2025-01-16 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 Nodes 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 Nodes.

  5. On the displayed page, set the number of 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.